Tank sizes?

[Chebird]

I keep my male bettas in live bearer community tanks; 29g, 55g and 45g. I did have one who lived a happy life in my 125g angelfish tank. I also have a sorority tank of females which is a 25g. Pictured is the guy I have in my 55g. He lives with numerous guppies and 3 yoyo loaches.

 

[ElenaSp]

I keep my male bettas in live bearer community tanks; 29g, 55g and 45g. I did have one who lived a happy life in my 125g angelfish tank. I also have a sorority tank of females which is a 25g. Pictured is the guy I have in my 55g. He lives with numerous guppies and 3 yoyo loaches.

Dam you have many and large tanks!!
Beautiful betta as well!!

 

[Ichthys]

No doubt most will probably disagree with this, but since male Bettas are ‘roamers’ (they’ll wander over a large area) with no fixed territory unless they’re breeding, I wouldn’t keep one in less than about 20g. The bigger the tank, the happier the fish. They’ll survive in tiny tanks, but it’s not ideal.

 

[Nuttawet]

I say tank size does not matter because betta don't swim much they stay still most of the times.

 

[Essjay]

In my experience bettas do swim and will use the entire tank. The bigger the tank, the more space they have to swim in. If they are kept in tiny tanks, they don't swim because there's nowhere for them to go.

Personally I would not keep a betta in anything under 5 gallons/25 litres.