I have been treating with Jungle Ick Guard in my 75g. Only the cardinal tetras are infected. I have been treating now for almost 2 weeks. I was concerned about using the medication for so long so I called the 800 number. they said to treat for 5 days, then skip a day, then treat for another 5 days. The bottle label says to continue to treat until Ich clears. I have been doing 25% water changes as directed, prior to each new dose, but I am wondering how long is it safe. I lost 2 of the cardinals, and I am still seeing some spots on a couple of them. Is it ok to keep treating, and how long does this take? they say you don't have to raise the temp, but I did raise it to 82 degrees to speed up the life cycle of the parasite.