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How Many Betta Fish Can Live in a 10 Gallon Tank?

Fishing in a gallon has become a popular method of the modern era. People are interested in keeping fish in a gallon and letting them grow.

You can either keep your fish in a gallon or the pond. Since the pond is not available, the gallon becomes the only place to let the fish swim.

You can put pretty much all types of fish in the gallon. But when it is betta fish, you have to keep some precautions in mind. They don’t like each other; therefore, you cannot expect to put many bettas in a single gallon.

How many betta fish can live in a 10 gallon tank?

At best, 5 betta fish can live in a 10 gallon tank. But you can only keep 5 female betta fish in a single gallon; male and female betta cannot live together. The male betta is dangerous. It cannot tolerate other bettas in a single gallon. You can only allow 3 male bettas to live together.

Betta fish are beautiful, and they can live with other fish. But the male betta is not safe to keep together. You can make a separation between a gallon and let the male betta fish one part and the female betta in the other part.

Male beta is ferocious. They want to swim and enjoy the entire gallon themselves freely; if another betta fish comes near them, they will try to hurt it. Eventually, any one of them will fail to survive.

That’s why keeping 4-5 female betta fish in a 10-gallon tank is safe. You should not mix male and female betta. You should not put more than two male bettas in a single tank.

How many male and female bettas in a 10 gallon tank?

Male and female betta should not live together. You cannot control them or help them breed unless you have the professional skills in breeding betta fish. However, you can put the male and female betta fish separately in a 10 gallon tank.

Male betta:

Male betta cannot tolerate each other. Whenever they see each other, they try to hurt each other. They start fighting and cannot survive in the same place for a long time.

Since the male betta fish is unsafe to keep together, you should only put three male bettas in a 10-gallon tank. It will be fine for them because of the tank size; they will get enough space to swim without interrupting other fish.

Female betta:

Female betta is safe to put on a large scale. You don’t need to think about its unusual behavior or any threat. It can live peacefully and enjoy living with other fish as well.

You can keep 5 female betta fish together in a 10-gallon tank. It is enough for them to swim and grow. They can even eat what you give them. So, it is safe to keep five female betta fish in a single 10-gallon tank.

Is a 10 gallon tank good for big enough or good betta fish?

A 10 gallon tank is good for the big enough or good betta fish. You can go for the bigger tank, but the 10 gallon tank is good for the betta. However, you cannot make it deeper. Your betta fish cannot live too deep or under the water.

Betta fish always love to live in a spacious environment. So, you should maintain the minimum space for them; otherwise, they will not find any food while swimming around the gallon.

The betta fish is not like other fish you may give the food to at one place, and they will come to that area.

Is a 10 gallon tank too big for a betta fish?

A 10 gallon tank is not too big for betta fish, but it is enough for them to live happily. Betta fish love to live in enormous spaces.

They want to swim and go from here to there constantly freely. Therefore, the 10-gallon tank is not too big for them; even 15 or 20 gallons is not too big for them.

When you plan to keep betta fish in a single gallon, you must check the depth of the gallon instead of thinking about the space. You should not use a 1 to 5-gallon tank for the betta. They are too little for them.

Can 2 betta fish live in a 10 gallon tank?

2 betta fish can surely live in a 10 gallon tank. But they cannot be male or female. Either you have to put two male or two female betta fish together. Don’t go for both male and female and keep them together.

The male betta fish will damage and hurt the female betta. Therefore, the female betta fish cannot survive in the same gallon. If needed, you can separate the same gallon and then put the male and female in separate portions.

What can live with a betta in a 10 gallon tank?

You can use 5 tank mates with a betta in a 10 gallon tank. It is unnecessary to keep them all, and you can go for two or three tank mates.

Kuhli Loaches:

The best tank mate for the betta in a 10 gallon tank. The Kuhli loaches can survive in a difficult situation, and they don’t need too much food to grow.

They can eat what your betta fish drop while eating—another good thing to use is kuhli loaches in the sleeping cycle.

Kohli loaches or the eel-like oddball fish rest during the day and play in the night when the betta is asleep. So, it is safe to let the oddball fish live with the betta.

Ember tetras:

If you want to make your 10-gallon tank colorful, you should add some ember tetras.

They are red-orange one-inch fish. They love to live in a team and school around the aquarium. They can eat the same food you use for the betta. So, it will become a good ecosystem.

Trumpet Snails:

Another fish sleeps during the day and is active at night.

So, it will be safe to put them together with the betta fish since betta sleeps at night and play during the daytime. They are also reticent and will not disturb the betta fish.

Cory Catfish:

If you want to buy some fish that can swim at the bottom of the gallon and will not become a threat to the betta fish, you should consider purchasing some Cory catfish.

You need to buy at least three to six similar types of Cory catfish and let them live safely at the bottom.


The rasboras fish can enhance the aquarium beauty through its orange-black and triangle-shaped body structure.

You will love this fish and can safely let it live with the betta as well. Buy the six rasboras fish at a time and let them swim safely.

How often should I clean my 10 gallon betta tank?

Cleaning the gallon for betta fish or any other fish is essential. You should not let the gallon be there for months. It will hamper the fish’s health. It will be better to make a routine and follow it regularly.

However, you should clean your 10 gallon betta tank twice a month. It’s the minimum requirement. You can clean the tank and change the water every week if you have time. But twice a month is must-follow advice for you.

How often to change the water in 10 gallon betta tank?

You should change the water once a week in a 10 gallon betta tank. If you have only beta fish in your tank, you can change the water twice a month or once in two weeks.

When you put different types of fish in a single 10 gallon tank, you should change the water every week.

You can also make a routine to change 10% or 25% water every day. So that the ecosystem will remain healthy and your betta will swim in freshwater every day. If you plan to change 25% water, you can change the entire water once a month.

Do betta fish need a filter in a 10 gallon tank?

Betta will not need a filter in a 10 gallon tank if you change the water frequently or once a week. Betta fish live in a 10-gallon tank without filtering; they are like still water and can enjoy swimming in it.

When you plan to change the water once a month, you should use the low-flow filter. It will be better for the better to live in filtered water.

Final thoughts

5 betta fish can live in a 10-gallon tank. But you cannot put both the male and female betta together. Instead, you can put other tank mates, namely, rasboras, Cory catfish, and others. They can live happily with the betta. That’s how you can make a good ecosystem for the betta.