Last week I brought home a sick betta. He had a bad case of pop eye. I work at a pet store and a customer brought him in to see what was wrong with him and what they could do for him. So I told the customer it looks like popeye and at first i showed them melafix. When they saw the price and said that's a little more than I was going/wanted to spend (he's just a fish). I showed them other medicines to treat him with. But they decided that it would be cheaper to just buy a new betta. So I ended up bringing him home with me. I've had him for just about a week. I'm treating him with maracyn tc. Monday is the last day of treatment. His eye looks just about normal now, other than his eye being a little bit hazy. He's in my biube now. I have a question...... does it really matter what kind of heater I get? I know I should have gotten a heater earlier and I know this sounds horrible to say...but I wanted to wait on the heater to see if he was going to make it. I have to be honest...I didn't really expect him to make it, he was really sick. But he's starting to be more active. I know there is a heater that the biube company makes that I could order. But If it doesn't really matter I can just get one from work. I felt so bad for him. I didn't really need another fish let alone set up another tank lol