I'm going thru the same issues in my QT where I'm treating all my fish for Ich with hypo. It's been one week and so far I lost:
1. Flame Angelfish
2. Six line Wrasse
3. Two Chromis
I have 9 Chromis, Algae Blenny, Dr. Fish wrasse, yellow tang, Pacific Blue tang, 2 baby clowns, 1 adult clown, long nose hawkfish, zebra goby. They seem to be OK for now, but I'm not so sure I can keep them in hypo for long. In one week I lost 4 fish. I'm also not sure the hypo is a good treatment for angelfish and wrasse. It seems to affect them the most.