You might want to check out a few more sources. If I remember correctly, seriously fish has always been ok, but not that great and some of their compatibility is way off the mark. I would recommend you look in few places and take the average (for example on all results on first page of google).have lowered my tank temp to 25c as this will suit all my fish. it is on the published limits of a couple of species but still within parameters according to seriouslyfish.