The betta is doing well. I had it in a 5 gallon tank (filter included, with a plastic plant), and it was happy, until I realized that it was getting fin rot, and still had the fade stripe across its body. So at the moment, I put it in a 1 gallon tank with Methalene Blue.
It's eating very well, it swims regularly, and comes up to me when I am near. So it's responsive, but not like a new betta fresh from the fish store, you know? I live in Trinidad, in the Caribbean. I check the water temp with my finger, and its never cold at all, just normal. I think a heater is a bit too much for me....with that, betta owning is becoming more complicated than rumoured.
I change the water 50% every 3 days