My tank has gotten a case of ich. I took my 4 fish out and now they are being treated in a qt tank. Just had a few questions. Do you feed normal, what about water changes? I understand the copper will kill just about anything. I am checking the water about twice a day. Should I do partial water changes daily? How long will ich survive in a fishless tank? I read 8 weeks but once the eggs hatch don't they die with out a host?