My 200 gallons had the ick for about three weeks and I have lost a lot of my fish. So far 5 snowflake, yellow tang, blue hippo, sunfish,white/red maroon clown and black/white clown. Those are the one has a lot of ick on it. The other are doing fine and eating. The first week I try powder med no effect, week later I try Ick-X same not thing. Couple days ago I went got the Kick Ick and it seem to be working. The black damsel did have a lot of ick on it and now it's has clear up half way. Very depression to see one by one dying on me. 



