I have had freshwater fish for the longest time. This is my first saltwater tank. Someone in my house has been turning the cold air conditioning on too high and the temp changes are giving my fish ich! I spoke with them about it today, but I had no idea how to treat a saltwater fish for ich. When I had freshwater, I would just put in some aquarium salt and they would get better within a couple of days. So I took out all of my rocks and spent a half hour trying to catch my damsel and tomato clownfish. I put them in a separate container, as the meds said to do. The guy sold me "QuICK cure", so I put that in there as told. I also put a little decoration in there for them to hide in. My fish look miserable in there! les miserables. Then, on top of it, I when I was putting my rocks back in my tank, I noticed my trigger fish was missing! He must have went into a rock or stuck to one.. I found him on the floor. He is back in the tank and swimming around fine, but I hope he is going to be okay! Am I doing this the right way?