New member
ive been runnin my tank at 80-81.5 for sometime now but i would like to drop it to around 75-77 how do i do his without givin my fish ick or any other illness?
If Marine Ich is in your tank, the temperature swing will not be cause for the Marine Ich (Crytpocaryon irritans) to 'attack.'

Reduce the temperature slowly. I would lower it about 1 degree every day until the tank water is where it will remain steady.