OK so I had what I believe was ICH, white salt like specks and bumps on my fish. It appeared a little over a week ago. We have lost all of our fish with the exception of 1 tetra (which the specks and bumps disappeared) and our 2 beloved Angel fish (who never had symptoms). I had put a medication in as directed, prior to reading the forums suggestions of treatment with out treatment. I have since had the tank at 88 degrees, doing frequent gravel vacs, and am changing the filter. So I have 2 questions Why didnt the Angel fish get it? When am I safe to restock the tank? Thank you in advance!