I just set up my first GSP tank and love these little guys. I have 2 in a 55. I was going to get just 1 but couldn't help myself when i picked them up. So far no real aggression and both are about 2.5 inches and in great shape. I have been giving them freshwater snails that I find growing in some of my tanks, raw shrimp, bloodworms and I have tried pellets but they have no interest in them. I'm going to buy some food for them today and was wondering what everyone is feeding there Puffers? I really don't want to use live fish but I quess if i have to I will. Any easy staple foods that I can give them on a daily basis?