Meet Fat Bastard

This is the most evil fish ever. His name is Fat Bastard because for one thing, he's fat, and for another, he's a bastard. Anyhow, in one week's time, he managed to eat 7 neon tetras and the parts of my betta's beautiful fins. I call him evil because he will wait until I come home or wake up to kill and eat the fish! That way, I sit and watch in disbelief as he munches away. Kristen, I bought him his own Eclipse 3 so that he won't hurt anymore innocent souls. The guy at the pet store said that puffers were non-aggressive and do not bother other fish. So, do I just have a fish from h-e-double hockey sticks? I'm so angry at him that I considered putting him in with my Convict to teach him a lesson but I'm afraid he's going to nibble off her beautiful fins too! Don't worry Kristen, your mini-skirt guy was not harmed!!!