How To Choose The Best Betta Fish Tanks

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Blue Betta swimmingThe Betta is a popular aquarium fish around the globe. From amateurs to professionals, there is something about these brightly colored fish that makes them appealing to everyone.

Before you dive into getting one, there are many things to consider when keeping a healthy Betta fish including what type of tank to keep the fish in. Learn the factors to consider when setting up a tank to house a Betta fish including the size, water conditions and potential tank mates.

Article Overview

Betta Fish Behavior

Before we get into the specifics of what to look for in a tank, we should give a little more insight into the Betta fish behavior and characteristics.

Betta Fish Aggressive Tendencies

The Betta fish is best housed in a solitary environment when kept in captivity due to its aggressive nature when confronted with other fish. Betta fish will attack and generally kill other male fish that have a more fantastic appearance to them. These attacks are generally preceded with a puffing out of the fins in an attempt to make itself seem bigger and then the fish will attack out of territoriality.

When Betta fish attack it often results in the driving away of one of the other fish. However, in an environment like an aquarium where there is nowhere to run, the fish will often fight to the death.

Should You Keep Female Separate From Male Bettas?

While most commonly these fish are known for the male on male aggression displays, there are also many incidents of male on female aggression, and as a result, it is generally recommended that male and female Betta fish be kept separated except for mating. Unlike the male, the female can thrive in a large tank with a couple of other females if the tank is large enough.

How To Choose The Right Betta Fish Tank Type

Now that you understand a little more about Betta fish, it’s time to select a tank that is a good fit for you and your lifestyle also taking into consideration your fish’s needs.

There are many things to look for including:

  • The tank size
  • How much “decoration” to place in the tank
  • Water testing, filtration and heating
  • Other equipment to include in the tank

Since there are hundreds of different types of fish tanks and bowls on the market, deciding which to buy can be overwhelming. So here are things to keep in mind when it comes to shopping.

Optimal Tank Size

Betta fish are typically sold in cups in pet stores which is fine for a short period. However, they do require adequate space to swim. While they would love a huge aquarium, sometimes space is limited, so a smaller tank is perfectly fine. A general rule of thumb is the bigger, the better (especially if you plan to have multiple fish).

Betta like to exercise, and larger tanks allow them to do so. It’s not only better for their health to get activity, but a larger fish tank means a better quality of water too as smaller fish tanks can quickly become soiled and filled with other contaminants. A betta fish tank should be a minimum of one gallon, but ideally two gallons or more.

Ideal Tank Shape

There are traditional aquariums, round bowls, bow front tanks, tanks with dividers, Zen looking tanks, advanced “bio” tanks…the list goes on and on. The truth of the matter is that the actual size of your fish tank is more of a concern than the type of fish tank that you use. The shape of the tank that you select is more of a vanity factor that concerns you more than it does your fish.

Best Betta Fish Tanks

Now that you know a little bit more about what to look for in a tank, here are some of our recommended picks for best Betta Fish tanks. All but one of the tanks below come in a “kit” that includes everything you need to get started. You still need to supply the food and water. We also picked out our favorites for each category to make it easier to decide which is the right fit for you.

Best Modern Design: The Fluval Chi Aquarium – 5 Gallons

Fluval Chi II Aquarium SetView on Amazon

The Fluval Chi aquarium is not specifically designed for Betta fish, but it has everything any Betta fish owner could need to raise a healthy fish. This 5-gallon aquarium is large enough to allow any Betta enough room to roam. It has a small grass-like Zen garden in the bottom of the tank as well as a waterfall type filter that stands out of the top of the tank. It also doubles as a great home décor piece.

This contemporary tank kit comes with the aquarium and base, low voltage LED lighting and filtration system, décor tray with a plant box, foam pad, filter pad, low voltage transformer, transparent pebble holder, natural pebbles, water conditioner, biological aquarium supplement and an instruction manual.


Best Luxury Tank: The Fluval Edge Aquarium Kit – 6 Gallons

Fluval Edge AquariumView on Amazon

If you want to spoil your fish with a five-star treatment in a spacious suite, then this is the tank for you. It’s raised above ground giving 6 sides for the fish to see out of. This beautiful tank also features 21 7600K high luminosity LED lights that can be lit for daytime or deep blue for nighttime.

This tank comes with an EDGE filter with cycle guard that ensures clean water through a 3-step filtration process. This set up also comes with a 2-year warranty. It should be noted that this tank does not include a heater which will more than likely be required for any Betta fish.


Best Bowl-Shaped Tank: The biOrb Aquarium Kit – 4 Gallons

The biOrb Aquarium KitView on Amazon

The biOrb is a 4-gallon spherical tank that sits on a base and features a matching top giving fish a 360-degree view. Made from acrylic, this tank is stronger than glass aquariums, but it can scratch easily.

This unique round bowl features a 5 step filtration system that is patented by biOrb and guarantees to provide a crystal clear environment for any fish. This biOrb aquarium tank kit comes with the tank, halogen light, gravel, filter, air pump, water chemicals, fish food and an instruction booklet. This tank is available in many different colors.


Best For Small Spaces: Tetra LED Betta Tank – 1.1 Gallons

Tetra LED 1.1-Gallon Betta TankView on Amazon

As mentioned above, the ideal habitat for your betta is 2 gallons or more, but if you are working with a tight space, the Tetra LED 1.1-Gallon Betta is best. Its half-moon shape has a rounded and flat edge to create enough room for your Betta to swim around while also allowing you to put against a wall or window which is great for an office or apartment.

It features a repositionable and removable LED light that fits above or beneath the tank and a lid with a convenient feeding hole. The only downside is it comes without the pebbles and decorative items which are sold separately. However, then you can get creative and select the items you wish.


Setting Up Your Betta Fish Tank

Once you have purchased your Betta fish tank, you might be anxious to put your new pet into place soon, but it is critical to ensure that the tank is set up correctly to create the ideal environment for your fish to thrive.

Step 1: Clean Your Tank

Before setting up your Betta fish tank it is essential to clean the tank with warm water before use, this ensures that there are fewer contaminants in the tank when you begin to fill it.

Step 2: Clean Your Gravel

Gravel is an integral part of any aquarium but frequently when it is packaged for pet stores dust will settle in the gravel, so it is important to wash it thoroughly before placing it in your aquarium. Gravel can easily be cleaned using a small hole sieve or colander. Place the gravel within it and allow the water to flow through it.

While allowing water to pass through the gravel use your hand to move the gravel around to ensure that the gravel on the bottom also gets cleaned thoroughly. Once it has been cleaned adequately, the gravel can be placed in the bottom of the tank.

Step 3: Add Décor And Plant Life

It is vital to add plants and décor not only for decoration but to provide spaces for your fish to feel like they are in their natural element. Excellent additions to your tank include “caves” that your Betta fish can swim through and use for shelter if they choose to “hide” and tall grass plants that allow your fish to hide within them.

This does not mean filling your tank to the brim with décor and plant life. When placing your décor, remember that your Betta fish MUST have access to the surface of the water so that they can breathe. The fish breathes air not only through the water but also from the surface of the water as well. A Betta fish tank that is too overcrowded with plant life or décor is going to make it difficult for your fish to come to the surface of the water to breathe.

Step 4: Fill Your Betta Tank

The best way to fill your Betta fish tank is to put tap water into a container and allow it to sit out for 24 hours. Allowing the water to sit out will help for a couple of reasons, primarily allowing the water to sit will help destroy any chlorine that is present in the water, secondarily it will allow the water to come to room temperature.

Depending on the quality of your city water supply, it may be a good idea to use a water conditioner or treatment to ensure that your water does not contain any elements that could be harmful to your Betta fish.

Step 5: Check The pH Of Your Tank Water

Editor’s Pick
API Freshwater PH Test KitAPI Freshwater PH Test Kit

Betta fish have specific requirements when it comes to the pH of the tank. To keep a healthy tank try to maintain a pH level between 6.5 and 7.5. Pet stores sell pH testing kits that will allow you to not only test your water pH but also adjust it as needed.

Step 6: Filter Your Betta Tank Water

Every healthy fish aquarium requires a filter designed for the specific size of the aquarium. Before placing your Betta fish in your tank, it is best to allow water to filter for a day or 2 as well as to test the pH levels of the water to ensure that your fish is not going to be stressed out by levels of pollutants in their new environment.

Step 7: Heat Your Tank Water (Optional)

Not everyone chooses to heat their Betta fish tank; however, if you do decide to implement a heater in your aquarium it is important to make sure that you place a thermometer in the tank as well so that you can monitor your tank temperature.

A malfunctioning heater can quickly produce water that is far too hot and can kill your Betta fish. Note: you do not have to heat your Betta fish tank to have a healthy fish.

Step 8: Add Your Betta Fish

Last but not least, it’s time to add your Betta fish to their new home. It is important to remember that merely throwing your new fish into their fish tank will most often result in shock so you should always acclimate your fish to their new environment. When you purchase your Betta fish, they will come with their own water that is likely to be significantly different to the water that you have set up in your fish tank.

When you bring your new Betta fish home allow your fish to remain in their original water and float them in your aquarium, this will allow the temperature of the acclimated water to reach the temperature of the tank so your fish will not be shocked when placed in the new tank.

Once the temperature of the 2 water sources are the same, you should begin to add the new tank water to the original fish container a little at a time to adjust your fish to the new water. Once the majority of your fish’s water is new tank water, you can release your Betta fish into its new home!

Video: Introducing Betta Fish To A Tank

In this video by Creative Pet Keeping, you’ll learn how to introduce your Betta fish to a new tank safely.

Additional Tips

Here are a few more things to keep in mind so you can make sure your new pet lives a long and healthy life.

Do Not Keep Your Betta Fish In A Vase

While keeping your Betta fish in a vase may look pretty, it is not the preferred environment for this or any fish. While fish can live for a period in stagnant water, the fish does not thrive and will certainly not be as healthy as it would be in a larger pool of water. Keeping a Betta fish in a vase will result in rapid stagnation of water in addition to insufficient room for your fish to exercise which will soon result in an unhealthy fish.

Avoid Cheap, Flimsy Tanks

Many tanks are made with plastic so make sure it’s made from a solid, high-quality material that will withstand wear and use over time. Flimsy tanks do not hold up well to the use of a heater and can be extremely dangerous.

Do Not Aerate Your Tank

Aeration through use of air stones might make a tank look pretty, but these types of features are not recommended for Bettas. Betta fish are used to swimming in still water and aeration can create too much turbulence in the water for your fish resulting in your fish becoming too stressed due to the amount of strength needed to swim against the current.

Do Not Use Distilled Water

Many people believe that using distilled water is the best way to fill a tank because it creates a pure environment for the fish, this is not true. Fish require specific vitamins and minerals that can be found in regular tap water and using distilled water means filtering out these vitamins and minerals and denying your fish these life-sustaining elements.

Debate Between Real vs Plastic Plant Life

Plant life is important in setting up a Betta fish tank because a healthy fish is one that lives in a “natural” environment. There are 2 options when it comes to placing plant life in your Betta fish tank: real plants or plastic plants. Real plants are an excellent choice for your Betta fish because they not only create a natural type of environment for your fish, but they also give additional oxygen to the water.

With that said, many people prefer to use plastic plant life for other reasons. Plastic plant life may not bring additional oxygen to the water, but they do help keep a cleaner tank because they do not break down and contribute to dirt in the tank.

Choosing the right plants for your tank is easy, and any pet store that carries a good selection of fish and aquarium supplies will be able to help you in selecting the right plants for your Betta fish tank.

Betta Fish Infographic

Check out this graphic we made that summarizes tips and how to set up your tank.

Betta Fish Infographic

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More On Betta Fish

Once you get your Betta acclimated, enjoy watching him or her swim around. However, if they start acting unusual or have signs of illness, you might want to reference our article on how to spot and treat common Betta fish diseases. We also have an article with some Betta fish facts.

Are you looking for a Betta fish tank? Had good results with one? Share your thoughts, feedback and advice below.

NOTE: While we have provided some information about recommended tanks, we are not certified fish experts, so we look to our community (in comments below) to help answer each other’s questions regarding specific fish tank experiences.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.

Disclaimer: This website contains reviews, opinions and information regarding products and services manufactured or provided by third parties. We are not responsible in any way for such products and services, and nothing contained here should be construed as a guarantee of the functionality, utility, safety or reliability of any product or services reviewed or discussed. Please follow the directions provided by the manufacturer or service provider when using any product or service reviewed or discussed on this website.

Amy grew up in England and in the early 1990's moved to North Carolina where she completed a bachelors degree in Psychology in 2001. Amy's personal interest in writing was sparked by her love of reading fiction and her creative writing hobby. Amy is currently self employed as a freelance writer and web designer. When she is not working Amy can be found curled up with a good book and her black Labrador, Jet.

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Hi. Some of your info was nice, and your review on different tank set ups was a help. However:
1) A betta really does need about 5 gallons (more is better)

2) Plants should NOT be plastic. Silk is acceptable, but with plastic you run the risk of damaging their fins. The best option is live plants. They actually make the water cleaner for the fish. It may look dirtier, but it takes more upkeep. Even looking dirtier, though, it has better oxygen.

3) Yes, a betta does need a heater. Unless one lives in a warm climate. The water needs to be in a range right around 76 degrees (F).

Can a betta SURVIVE in the conditions you described? Yes. Should it? No. It would be much like a person living their entire life in a jail cell, but without ever having a chance to do so much as visit an exercise yard. A person CAN survive like that, but it would be miserable and unhealthy.

Stuart Stephens
I feel the luxury tank #2 has limited access to water serfic . Betta actually have “lungs” and need access to the serfic. I know I am not spelling serfic right.
I had a Betta Fish several years ago and enjoyed “Fish” for two years. I had him in a 1/2 gallon tank without filtration or a heater and he seemed to love it. THen I heard these fish need a filter, so I moved him to a 1 gallon tank with a filter. He hated the current and sat behind a live plant 24/7. After a month, I put him back into his smaller tank where he swam happily.

I changed 50% of his water weekly and cleaned the tank. Now I hear all this stuff about 5 gallon tanks, heaters and filters. Is this something new?

Mauricio Rendon
I think you don’t love your Betta… A half gallon of water it’s a terrible prison for any fish. With no filter you have to change the water at least every 2 days, because the ammonia levels going up fast in bowls or small containers without a filter and the ammonia it’s the most dangerous chemical for the fish. Nowdays there are some good 3 gallons fish tanks for $50 with everything: Lights, filter and pump. I think your betta deserves it.
To really be an Earth Friend you shouldn’t advertise those horrible little containers they put Bettas in. 5 gallons is the bare minimum. Otherwise the tank is too small to cycle and the water quality it’s too difficult to control. These fishes’ beauty has been their downfall. They aren’t ornaments or things you can forget. They’re living things. I have mine in 29g / 110 litre tank and he loves it. They’re very intelligent fish that need stimulation.
Sarah Jin
Hi, I recently got three female betta fish from my friend. I’m really worried about one of them. She is laying at the bottom of the tank every time I see her. I got them about ten days ago, and at first I could see her swimming around sometimes. Then I went away for a week while my brother fed them every day. When I came back, she was like this. A couple days ago, her eyes developed white spots on them. I also think her fins are clamped; they look shriveled up. Today, I noticed that her gills are a bit red as well.

The tank I keep them in is 20 gallons with a filter. I use conditioned tap water and do a partial water change every week. I don’t have a heater or testers but my house temperature is 80 degrees Fahrenheit on average. There are no plants or ornaments since I just got them, but I am planning to get some along with other fish of different species. There is no tank lighter either. I feed them about 15 pellets every day, but I haven’t seen the sick one eating. The friend that I got them from did all the same things as me except she also used aquarium salt, is that the problem? I tried to do some research but none of it really helped. I can’t tell if it’s clamped fins, cloudy eye (the eye doesn’t seem to be protruding outwards), inflamed gills, or all three. How do I treat my betta?

Thank you so much for helping!

“sorority” set ups place an incredible amount of stress on female bettas especially when they aren’t heavily planted. that is likely the reason for her lethargic behavior. i would strongly recommend seperate tanks and certainly not introducing any more fish into an already stressful and territorial environment (also I notice now that this comment is a quite a few months old but still i hope this information is useful to you or to someone else)
I have been researching beta fish and what they need to survive as i have been planning to get one for a while. I have had beta fish before but it has been a while and there are new products that help take better care of them. I have a 1 gallon tank(it is round and looks a bit like a large vase, it is not a vase i was assured it was safe for a fish) already and am planning on buying a live plant as well as a rock cave so the fish can live more comfortably, but i have been told it is highly reccomended i get a filter for said tank. Sadly due to the round shape of the tank and smaller size i am unable to find a good filter that would fit comfortably in the tank do you have any recommendations.
Troy Tholen
Get a different tank…
Do Betta fish need to have heaters to survive and stay healthy?

I got my Betta fish today and he seems to be happy but I’m wondering if the water is too cold for him!

25.5°C-26.5 C apparently but I think it’s somewhat larger than that, what’s your room temp and does it have any sudden changes?
Also, how long should i run the tank before i get my fish?
I got a 5 gallon hexagonal tank for my betta for Christmas, my mom keeps saying I don’t need a heater. Is the tank ok for my betta, and does it need a filter?
Your does need a heater and a filter. Make sure the water temp is 25c to 28c and the filter flow is not too strong as this will stress out your betta
i Just got a betta fish, she is a female and her name is pumpkin. I clean her tank every other week . I had her at the window with two balloon plants in her tank , after about three weeks i noticed that algae started growing in the tank and it was caught in her fin. I was a bit concern until a colleague of mine told me to remove her from the window. I did and i got her a bigger tank, she is now on my desk and is doing beautiful. I enjoy watching her swim. She is beautiful but sometimes she scares me when she stay still in the tank for a period of time.
my betta is in a 10 gallon and he loves it. but i dont use a heater, i have had him for a year and he is always active even tho the water is cold.
Hi, your fish may be living but that doesn’t mean it’s thriving. You’ve been lucky. Shame on Amy Brennan! It is extremely irresponsible to tell people that you do not need a heater for Betta fish. To state an opinion and inform people it is just an opinion is one thing. To mislead people by stating a heater is optional can cause Betta fish to live miserably and possibly die. This is a tropical fish and and need to be kept at tropical temps to live happily and thrive. Look elsewhere for your advice! Humans become very active when they’re freezing and don’t want to die of hypothermia. I’m not an expert by any means but this woman doesn’t know what she’s talking about. A quick search of other sights will tell you how important it is to keep your Betta at consistent tropical temps, what they should be and so on. Please do your Betta a favor and look it up elsewhere. No where else have I read that it’s not important to make sure your water is heated to a certain range and stay there.
Really 5 gallons is the minimum. Anything less is definitely putting stress on your fish and making maintenance unnecessarily difficult. Especially in your date is tell type is especially large like halfmoons or double tails. Most people never think of it but the more space your fish’s tail takes up the more room they’ll need to maneuver around. Not to mention you have King bettas which are normally particularly large in body and require even more space than usual. Also your article should make perfectly clear that any tank less than 10 gallons is probably not suitable for a community or sorority tank. Bettas need their space and the larger the tank once you start adding other fish, the better. Also your article should explain that aquariums absolutely need a lid because bettas are Infamous for jumping out of their tanks.
Is a 5 gallon too small?
Can you please at least correct the minimum tank size? Putting a betta in a 1-gallon tank is just animal cruelty.

Also, a heater is only optional if your climate is warm enough even at night.

Lilla Murazo
so much information in this article is wrong. Bettas need a heater. They are tropical fish and come from Thailand. If you get a thermometer then you can watch it make sure that your tank isn’t too hot or too cold. Bettas need 2.5 gallons as a minimum anything less is cruel. I would never call 6 gallons a “luxury”. The best tank that you could get is a 10 gallon. Buying a 10 gallon, filter, lid, heater, and decorations would cost less than any of the tanks you show. Finally, you need to test more than pH. Don’t get me wrong, pH control is important but just as important (or even more important) are Ammonia, nitrite, and nitrate.
Right. I bought a 10 gallon tank at Walmart for my female juvenile betta to grow into and it’s cheaper than any tank kits I saw under 3 gallons at Petco
I’ve had my Betta, Oscar, for almost 4 years in a round 2 gal bowl, no filter, no heater. He’s just fine… I change his water every other Friday. He comes to the top of the water when i walk by. He’s awesome!
Modern Fish Bowls designs come with very amazing features. They come with many decorative possibilities. The glass fish bowls are the modern introduction on the market.
Why on earth would you say a heater is optional, and emphasize it? Bettas can survive cooler temperatures, but in order to thrive they need stable temperatures (emphasis on STABLE) and minimum 76 degrees up to 80 degrees. I hear so many folks complain that their betta isn’t active – it’s because it’s too cold. You can’t leave a light on to warm the water, first it’s not capable of maintaining stable temps and second, the fish need dark to sleep properly. The recommendation of 1 gallon as a minimum tank size also wants to make me put the author in a cold closet, throw her a chicken wing from time to time and see how she fares. Survive? Sure. Thrive? I doubt it.

Some of the content here is good – let’s not throw the baby out with the 68 degree water – but please revise it so that it accurately reflects what the fish needs.

it must be remembered that the Beta is found in rice patties, and although only knee deep, stretch out in length and width forrounded distance , and has both short term and long term memory capabilities.
It is not a fish you can leave alone for hours at a time,day after day.
Mine loved car trips to watch the ocean waves, and an occasional viewing at the computer web videos of underwater scenes at home. He would swim with the video and then swim up into his homemade floating couch where he would fall asleep watching the video. I loved him so.
I’ve got a rescue in a 2.5 gallon tank now, and looking for a bigger forever home for him. I’ve heard good things about the Fluval Edge, I love the surface area, but the price tag made me hesitate. It really looks to be the best, though, and I just love the way it looks.

One quick thing, though….

Heating is optional for a betta? You don’t have to heat the tank to have a healthy betta?


I don’t keep my house at 80 degrees, do any of you? If you don’t, the tank needs to be heated.

I mean, I guess it’s not super necessary. I suppose you could get lucky and have a betta survive in cold water. Sure, it happens.

My mom ate nothing but Jimmy Dean breakfast sandwiches for two years and didn’t have major physical health issues because of it.

But I wouldn’t go as far as saying you don’t have to eat anything else to remain healthy.


The first thing you need to know before owning a betta: keep them separate. Yeah you could do a sorority, but if you don’t have tons of experience, you’re going to kill all the girls, so don’t try it. Keep them apart.

The second thing you need to know before owning a betta: 1 gallon is the absolute minimum, and expect it to kill your fish after 2-3 years (yeah, the 3-5 year lifespan is straight garbage, they can live up to 8-10. I have a 7-year-old female right now). They need AT LEAST 2.5, preferably 5, and it needs a filter.

And the third thing? HEAT THE DAMN TANK.

That’s not optional, unless you’re cool with abusing intelligent, sentient animals who remember and recognize faces, show preferences for food, toys, and people, can be trained to do surprisingly complex tasks, and express an array of emotions. One of my boys can literally count to 3. They can also problem solve and have been trained to figure out how to solve mazes.

They’re not particularly smart, but they’re smarter than most people realize. They’re not dumb.

If you’re cool with keeping a Great Dane in a 3-foot kennel for its entire life, then by all means, get a 1 gallon, unfiltered, unheated tank for your betta.

If you want to look for an affordable tank don’t forget to search thrift stores. You’ll be surprised when you can find. You might find a tank as big as 10 or 20 gallons for a fraction of the price they would go for at any pet store. You might or might not need to add yourself but it’s worth it for a bigger tank. I found a 29 gallon for $12 complete with a filter and a hood. Granted the light needed to be replaced as it turned out but it wasn’t nearly as expensive as then 10 gallon tanks at the pet stores I was previously considering. And it enabled me to have a nice peaceful community tank
Please do NOT use plastic plants for your Betta. The roughness of the plastic can tear their fins to shred. Live or silk plants are best. If you absolutely have to use plastic, it needs to be able to pass the hose test. Aka, take some pantie hose with you to the pet store. If the plastic catches or snags on the hose? It’s too rough.
Yeah and if they do tear their fins they can get fin rot and other diseases. If you want plants, silk plants or real ones are the options.
is disgusting. If you have a budget and all you want is look, get a damn rock. Do not have an animal suffer in a tiny little tank because you think it’s /pretty/.
That’s what I thought!!! some of the tanks are TOO tiny for the betta. half a gallon??? really? even a gallon is small. absolute minimum size is 2.5 gallon, but 5 gallon is minimum for betta. But chi aquarium is not good even tho it is 5 gallon. tiny surface for betta to get to surface and catch some air. Flow seems strong too. I wish this article goes down. Terrible choice for betta fish.
Crap……… mine is 1/4 of a gallon
Now is not too late to get a larger tank for your Betta! I would recommend a 10 gallon– the smaller the tank, the more concentrated the bacteria. I recently lost my Betta to ammonia poisoning in a 5 gallon. My mom had the same trouble with her Betta but we were able to save hers because he was in a 15 gallon and therefore didn’t get such a high dose of ammonia.

This article has some misinformation in it.
What to do:
1.Get a tank, filter, thermometer, and heater. I wouldn’t recommend starter kits, they are usually lower quality and break easier. Also, the filter has to be low powered since Bettas aren’t strong swimmers. I read online that you can put panty hose on the filter suction to stop the Betta’s fins from getting caught and ripped. The thermometer has to heat between 76-82 degrees. I think 78 is perfect.

2. Get decorations/gravel: If you’re going for fake, get the Nat Geo silk plants. Be very careful. Bettas are very fragile and any plastic plants will rip their fins. I had that problem with soft plastic grass.

3. Get Betta Safe/ Safecoat: makes tap safe for Betta. (Yes, tap is better for Bettas) Bettas are adaptable fish and can survive in basic water, even if they prefer acidic.

4. LET YOUR TANK CYCLE FOR 2 WEEKS: The article doesn’t mention this. Newly set up tanks don’t have beneficial bacteria that breaks down ammonia and waste. Also, new tanks have air pockets. These can harm and kill your Betta. I didn’t know about that when I got my first Betta, luckily he didn’t die.

This should increase your Betta’s life span by years

Good Luck! 🙂

My Aquarium Club has good information. Check it out if you need any help.

i think i will
Hurry up and get a bigger one! I hardly know anything about bettas, but they need a much bigger space than that.
Masood Rayan
Contrary to popular opinion, fish bowls and vases are NOT easy to care for. Remember, any container under ten gallons, whether it is sold as a “tank” or as a “bowl,” and whether it is filtered or not, is small enough that it should be treated as a small tank or bowl. Also, any tank that is not filtered, regardless of its size, should be treated as a small tank or bowl.
I agree!

Bowls have to have their water changed twice a day. My tank is infected so I am keeping my new Betta in a bowl. I do not reccomend!!! It is a pain to maintain. Not to mention it shortens their lives by years when in small, unfiltered, unheated tanks.

I just had another Betta die in my 5 gallon tank. Bacteria/ ammonia/ nitrates/ nitrites are more concentrated in smaller tanks. Both my mother’s tank and mine suffered from ammonia poisoning AND fungus from introducing new fish. Her Betta survived, however, because he is in a 15 gallon tank.

yeah, I was lucky I got a little beta when,I was 10, it was just a little plastic tank with one decoration in it, I’m surprise (looking back) that he lived so long
Hanabi です
Should I have a lid of my betta fish bowl?
Sadie Cornelius (Admin)
It’s probably a good idea to keep the fish protected and safe!
Bettas can jump 3 inches. My family learned that the hard way. I am temporarily keeping my Betta in a Bowl because her tank is messed up. I kept it partially covered first with a washcloth partially covering the top at first, then I covered it with two thin peices of plastic wrap just narrow enough to keep her from jumping out, but wide enough to feed her and for her to breath. I think the washcloth is safer since it is softer. There are other solutions though, you just have to use your resources. 🙂

If possible, I would upgrade your Betta to a tank. It will increase his/her life by up to 3 years. I have heard of Bettas living up to 10 years. One thing this articles doesn’t mention about setting up tanks is that the tank should be left vacant and running for 2 weeks to cycle it and get bacteria in it that eats ammonia and waste. It is also inadvisable to put the Betta in right away, since there are air pockets in new tanks which can kill the fish. (I got lucky with my first Betta when I did that)

Yes! They are infamous for jumping out of their tanks.
Carolyn Bagley
I want to purchase 1 female betta, 1 ghost shrimp and 1 nerite snail. I need to know can they live together? This will be my first female betta. I have tried to get information on the female but, they end up talking about the male betta. I know a lot about the male. I wanted to buy the female, to start something new. Any help I would be thankful.
IF you get a female, most likely it’ll get along with the 2. It might think your shrimp is a tasty snack though! So yeah you can try it out, see what happens. I don’t recommend getting a snail because they have bacteria all over them. But yeah you can do it. Make sure they all have at least 4-5g of space.
Kate Bayda
Females are the same as males I find they live longer idk why but I’ve been breeding them for some time and the females always seem to live longer
Every time we move our Betta’s to larger square, rectangular, or any hexagon shaped tanks, they see their reflections and stress out to the point of fin splitting, gray scales, etc. We eventually have to move them back to their tiny plastic bowls so they can settle down and heal. My daughters have been training their Betta’s to do some tricks, but we eventually want to move them to a larger tank for some of the training (and for a nicer environment for them). Are there any non reflective surfaced tanks available for Betta’s, or does anyone have a suggestion for a larger round bowl with a lid? We would love to add a filter too, so we do not have to deal with weakly water changes, but obviously can’t do that with a tiny round bowl. Thanks for your insight.
I’m kinda stupid but would sinking the small tank in with the big one work here as would be there safe spot untill they’re used to the new environment?
That is sort of what you are supposed to do, but not with a tank. The best thing to do is to get the cup they were bought in (or something similar that hasn’t been exposed to harsh chemicals) and put them in that when transferring them to the new tank. Float them in the tank for about 45 minutes to get them acclimated to their environment and the temperature. Also, if the water has different properties, slowly put some of the tank water into the cup over the 45 minutes to adjust them.
Actually, the reason that they see their reflection is because of lighting issues. I don’t know where they are or what the situation is, but you should check out that lighting. Also, putting a back to the tank will reduce their reflection.

I would recommend a 10 gallon tank or larger. The starter kits are cheaply made, I would recommend buying the parts separate, even if more expensive. Make sure to get a low power filter because Bettas are weak swimmers. If they are seeing their reflection, its an issue with the lighting.

I’m not trying to be mean here, but even with a filter you still need to do weekly water changes of 20% to 30% of the water. If you don’t have a filter, I would be doing water changes every 1-2 DAYS, regardless of tank size. If you want to get a larger tank for them, I would recommend a 30+ gallon tank with tank dividers that you cannot see through
Garth Slack
Thanks for the great article Amy Brannan! Helped out a lot.