I may be wrong here, but you can't hypo your display because of the inverts...it will kill them. I keep seeing that advice on this thread, but to be clear, inverts (corals) cannot handle slainity fluctations - basically it will kill your coral.
However, I agree I would put your fish in a hospital tank, and treat them there with hypo. After about 4-6 weeks the ich in your display tank in larvae stage should be completely eliminated due to lack of hosts (ie - no fish) and then you will have a clean display,a nd can return your healthy fish.
I am not sure what size tank you have, but looking at the fish list you have alot of fish. I know you said that your water was pristine, but please understand one of the major contributors to ich is stress...and for fish that can come from overstocking. depending on the size of your tank, you may seriously want to consider removing some fish, otherwise this ich issue might continue to happen.
Again, I would search the disease forum for better information, there are some very knowledgeable people that post there. (Beth)
Stewart