okay as some of you may know i just took possession of my 55 gallon tank from my now x gf. to be a nice bf i let her choose the fish in the tank since it was in her room anyways. now i have it, it currently has 2 ID sharks, 1 silver dollar, 1 clown loach. well this tank setup does not meet what i want at all they are all too tame and kinda lame. so the actual setup of the tank is one marine land emper 400 and a penguin 200, with normal gravel you buy at a pet shop that's a 25lbs bags. i got two of them ones the blue the other is like a black. i have thought bout buying some cichlids of some kind, along with a wolf fish, or another oscar. i thought about these, but i don't wanna only have one fish which kinda knocks the wolf out basically. i don't have a lot of time to go and look at the local fish store, but do know what my friend could get me though. i can't wait to hear your guys suggestions.