Midwest reefer.... with all the lights/pumps.... cooling is more of an issue. My heaters only come "on" at night and only when outside temps are in the 30's.
Nicky....I really don't have that many fish in there yet..a purple tang, a powder blue tang, a few bannerfish, a copperbanded butterfly, a few damsels, a few clowns, a leopard wrasse, and a few bi-color anthias.
The tank has been kinda idle the last few months.... I'm trying to be selective in what I add... but, here are a couple of photos: