I also like the higher temps. Mine I keep at 81 F. For my reef but fish only ,this high temp will make there motabolisom very high so they must feed more often, also does not hold as much oxegen. It has been shown that corals can handle higher fluxuations of temp if they are kept in the 80s as aposed to the 70s. My fish only tanks are at 72 t078 depending on species.