i was lookin at saltwaterfish.com and some of the fish said they weren't reef safe but in the same breed some said that they were reef safe.. now what would happen if i put a fish that wasn't "reef safe" in a tank with reef in it? i haven't set up my tank yet im trying to do alot of research before i start so i don't kill really expensive fish!! any help would be great.. im gonna do a 55gal. and some of the fish i want to be in it include.. Tang, Butterfly, Clown, Angle, Fire Shrimp and some Hermits and maybe some other fish but that's what i want to start out with.. any suggestions or adivce would be great! thanks