You know how Betta-boy and friendly share a tank. Well now that tank is only for winter. because it's spring and things are heating up, They have two 3gals of their own for summer. In winter there in there 5gal and in summer their in their very own 3gal see ya.

y do u change there tanks???

I'm not quite sure but one reason is you don't need a heater in summer.

Cool I bet they love their new tanks. No more sharing.

Sorry im just wondering are these females?

No, they're males but instead of a divider Friendly is in a sort of cage with holes in it, about 1g. Bettaboy has the other 4g to himself. It's a 5g glass tank, I needed to use a heater for winter.

Now I don't need a heater so they can have a 3g each, side by side.