OK, so I am using Red Sea Coral Pro (black/purple), got 2 MP40s, Caribsea Liferock, Neptune Platinum 39 with roller, Tunze ATO. I want to put the lights in my canopy which is 5 1/2" over the water...
Using one 500W Hitauing heater. Started cycling (without lights)! Ordered the Red Sea Reefer 900...