After coming back from a trip I discovered that my dwarf gourami was colorless and had white spots all over him. (A fish my family member had picked up from her friend had been placed in my aquarium while I was gone.) I freaked out and went to the store to buy air stones so I could raise the temp. I also purchased an expensive medication- General Cure API- that I was told would solve the problem. Now it has been a day, I have educated myself on ich and now have come to find out this medication is useless- General Cure by API. I have also raised the temp to 82- but have also learned that high temp + med = bad. SO... I am stuck. My gourami is on death's door barely breathing and my cherry barbs as well as neons are showing white spots as well. I don't know what I should do. My filter cartridge does not have any carbon in it, but I don't want to replace it with a new one with carbon to destroy the BB. So my question is, what is the fastest way to remove medication- ie: insert a bag of carbon in the tank? water changes? OR should I just keep medicating?