The tank is one of those 1g corner tanks, the lid wont allow for a heater, so in order to put a heater on this tank, i would have to remove the lid, which in turn would allow for kitty attack, and remove the light. Cats do eat bettas, Ive had it happen. Anyway, he has a 10g that he was going to put this fish in when he gets better. He already has a couple of danios in there and doesnt want to get them sick. This bettas tank has been at least 89* since monday and the spots are still there. I am very concerned that this isnt ich, but if its not I dont know what it is. What could he have had for at least 3 months that he has survived? My understanding is that velvet, which apparently looks kinda like ich, would have killed him by now. I am debating on wheither just to use the quick cure and quit messing with his temps.