$400 for a bass? Yes, that's too much. Doesn't say how big it is, just that it's outgrowing his tank. We seined a 3.5" bass from our local creek and put it in our tank. It hasn't died and hasn't infected all our equipment in 3 months now. We keep native fish, also from local streams, and not pet store tropical fish, so maybe that makes a difference. He's right in that they do grow quickly.