Hi, I have a green puffer, that seems to be rather carniverous. He ate my four neons in less than an hour and I believe is eating the catfish too. The problem is that I like him, but don't want him to eat all my fish. He hasnt bothered any one else in the tank. What fish work well with puffers?
Puffers are aggressive fish that are pretty much best kept on their own.
As they get older, they can get more aggressive and will generally eat, or harass all other tank mates, especially those with frilly fins etc. They are great fish, but not really for a community tank. I'm surprised someone sold the puffer to you without telling you that it would eat everything in your tank!