hello everyone, about a month a 1/2 i've set up my new tank with about 140lbs of live rock and equal amount odf live sand, the tank cycled very quickly, i started with a foxface rabbitfish which seems to be doing good, but just last week a picked up powder brown tang, or white faced tang, 3 days laters he's scratching all over the rocks and seems to be getting ich, the cleaner shrimp seem to be keeping him clean to a point but it doesnt seem to be getting any better, i dont have a QT only a 55 gallon fish only with triggers and puffers, any ideas, please help, thanks Malkz