Im just keeping platies and mollies for now. It was going up and i wasnt sure when it would stop, also it wasnt even that warm in my place so i didnt want to test it and see it go past 83. Cant believe it did so well but i dont want it to be too cool then too hot sorta thing. Id like it to be steady throughout the summer and much easier with no fans through the winter. Just looking for an optimal environment for my fish buds.