Purchasing a betta fish tank should be one of your first considerations, when you are thinking about buying a betta fish for yourself or a family member.

What might shock you as you proceed through the process, is the number and variety of fish tanks and aquariums that are available.

There are tanks and betta bowls that come in all sizes, one gallon tanks, two gallon tanks, ten gallon, twenty gallon and on and on. Some are round, some are wine glass shaped, some are square and yet others are almost any shape you can imagine. A lot will depend on the number of fish you are getting, where you are placing the tank and if there will be other fish in the tank along with your betta.

If you are only going to have one betta, a two gallon size tank should be enough. The dimensions will be about 12" L X 10" W X 7" H and will be suitable for a desk top, counter or a small stand. Your fish will have plenty of room to swim and you can add rocks and plants and still not overcrowd the tank.

If you have a little more room, a three gallon tank would be appropriate for one or possibly two fish. The size would be approximately 15" L x 9" W x 11" H. This tank would allow sufficient room for rocks and plants, but would allow each fish to have their own area of control.
But make sure you don't have two male bettas in a tank, they will fight and eventually kill or harm each other.

If you are really pushed for space, one betta can live in a one gallon tank, which would be about 8" L x 10" W x 7.5" H. This would not be ideal, but considering the plastic cup they live in at the pet store, a one gallon would be a big improvement.

When making your tank purchase, think about what will go into the tank. If you have large plants, rocks or display pieces such as a pirate ship, a large tank will be your best bet. Bettas like places to hide, such as under rocks, under plant leaves and in the small crevices of the ornamental display pieces. Even though a betta is a small fish, the addition of these extra items, will demand a larger home for the fish.

Keep in mind that these fish tanks can come in a variety of shapes as well as sizes, which means that you can purchase a tank to fit into any decor you might have.

Having multiple fish will present a whole new problem area.

Male bettas, the bright colorful ones, will fight for domination of a tank, never put them together.

Female bettas will also fight other female bettas for tank domination, but a male and a female can be in the same tank.

If you want to many bettas in a tank, I would suggest going with females, they aren't as colorful, but will get along better. The more females you have in the tank the better, the surprising thing is, the more in a tank the less fighting. A good starting number would be 5 females.

One good rule of thumb, is to allow 5 gallons per fish when you have multiple fish in a tank.
This would mean a 25 gallon tank for your 5 female bettas. Each female will attempt to control a portion of the tank, so provide them with plants and rocks, so they can have separate areas from the other fish.