- Reaction score
I have a betta(Bruce, see my display) and I keep him in a very small 2.5 gallon tank. He seems extremely content (although I don't have a heater for the tank either, but I've heard betta can be cold water as well) but he only seems as content as a betta could be. I'm not entirely sure, he seems happy, swimming a lot at times and at other times hiding in a corner (until I turn off the overhead light). How can I be sure if he's happy?