warning don`t use no-ich Marine

i had Ich in my reef tank on some fish and used no-ich by fishvets  supposed to be reef safe after 2 weeks of use it cured the ich but all my sps corals are dead or dieing.  I have been doing 50 gallon water changes as fast as I can make it and it isn't helping.  any suggestions would be great

 

as soon as i saw my corals dying i stopped using no-ich and turned my protein skimmer, gro reactor, carbon reactor and uv sterilizer back on.  not helping though seems like every time i look at my tank another coral is dead.  now my softies and lps are dying too.  one good thing my fish are doing good.  No more Ich. LOL