but after doing a ich treatment, i raised it to 90 and now i have a hard time getting it lower. its at 87 now adn i have the temp set at 75. it went down from 90 to 87 in a week.
This is the perfect recipe for some sort of bacterial infection. Sudden Temperature changes are very stressful for the fish. Just let the tank temperature slowly come down, you are 2 degrees from your normal tank tamperature anyways.