i wanted to get 1 maybe 2 dwarf puffers. the petsmart down the street from me has them and i wanted to get them but i wasnt shure if they would harrass the other fish in the tank. they would be the smallest fish in the tank. would they eat the same thing as my other fish. one other question what would you call my tank? is it peacefull community or semi-aggressive community or a mix? thanks.