OK so I recently got back into the hobby with my new 180 gallon tank with mainly SA and CA cichlids. The tanks been running for about two months now and I recently saw some things that scare me. First off my jack Dempsey did this thing were he shook around and flashed ("scratched himself" on the substrate.") The first time he just flashed the second he shook around then did it. He hardly does it, I've only seen him do it twice both today. Also my new juvenile pearsei cichlid I just got and introduced to my tank a few days ago(Monday night so 2 days exactly) "scratched himself" on a rock in the tank. I'm thinking maybe these are the early signs of inch in my tank. I have spent a lot of money on livestock for this tank and really like my current stock and am not willing to risk inch killing off my fish. So as a precaution I raised the temp to 86 degrees beacause I know hear kills ich (I'm not even sure if I have it but I'd rather be safe than sorry) I'm not sure if I should add salt beacause I have a common pleco and a featherfin cat. So do you think I am experiencing the early stages of inch(I don't see any white spots "yet".) If so what else should I do to kill it before it even infects my fish??? Also if you think it's not inch and possibly something else please chime in. Also my fish are doing great and eating well and my water prams are good ammonia is about .10-.15 ppm(I have one of those cheap dip strip test kits and it's somewhere between 0 and .25 ppm. Nitrate is around 10 pmm and nitrite is 0 ppm. These are the levels after a water change (I did a 40-50 percent WC today).