Substrate in hospital tank

[Buccaneer]

My point is that I dont think all fish carry ich ! ... a healthy fish can deal with it ... it is proven scientifically that ich has a specific cycle and if it is broken the ich will die ... because we all dont get rid of ich in our systems does not mean that it is a impossible task ... I believe that if a tank is left fallow for 4 to 6 weeks and the fish put in hyposalinity the cycle will be broken for good ... the problem is when we get a new fish or coral we have to be meticulous to QT them so as to not introduce ich back to the system. For most of us this would be a daunting task as that would mean a Fish QT tank with it's own filtration and yet another QT tank for corals as well with seperate filtration