Hello, I have a 180 gl tank that I intend to be a fish only. Maybe a softy or 2. I'm not sure which direction I want to go fish wise. So far I have a pair of clowns who have moved into their rock pile & a Copper Band. So my question is rather wide in scope I guess. Do Butterfly's ship well? Are they prone to any specific diseases ? Do They require any special acclimation? Can I keep several differing types without in fighting? Would they be Ok with say a tang or other semi aggressive fish? Any questions I don't know I want to ask yet? I'm not looking for high dollar sponge specific feeders or such. Just some idea of butterfly's in general. Iv'e lost my last two butterfly's in short order so I want to be ready this time. They will go into a Q/T for observation & treatment if necessary.