reefkprz
Active Member
I generally run multiple heaters, all set for the same range, this help keeps swings smaller because the heaters work together to maintain the same temp. I run a total of 4 heaters in my 125 3 in the display and one in the sump. my temp never varies beyond a 3 degree range. which in my experience is stable enough I would prefer one degree but my heaters are cheap.