The tank has been setup for over a year. I moved everything out into my other tanks and added the fancy guppies. I try to get water changes done each week, but some times its 1 1/2 before I can get to it. I have been watching him for a while now but haven’t seen anything like fin rot. My tank has been around 81-84. I haven’t added any frozen bottles to cool it down, in the last couple days. Should I wait longer to try to cool the tank down by putting frozen bottles of water in the tank?
