Hey all, looking for some advice on dealing with Ich... Read thru a few posts here but had some oadditional questions. My three tangs (blue hippo, yellow and naso which was added about a week and a half ago and is a reason i have this problem on my hands now) have ich. They are in a 150 reef tank. Is there any known treatment that is safe to use in the main tank without destroying it? I have other fish in the tank but they don't show any signs of the desease. should i assume they all have it? What would be appropriate Q tank for 7 fish(3 tangs, 2 clowns, two damsels and a dottyback)? wuold 40 g breederwork? Thanks for any input!