i keep one 75 watt ebo jaeger in my aqua c remora skimmer and one in the main tank. the main tank one will move to a refugium next week. from what i understand, a sump, refugium, filter or anything that holds water just becomes part of your entire volume of water and makes it possible to put most equipment on any part of that volume of water. the short version would be i think you could place your heaters anywhere you want
hope this helps, or if i am wrong someone corrects me
75g RR. 2x250 14k MH
/ 2x54 T5 act. 29g sump. ASM G1X skimmer. phosban reactor. 80lbs LS
, 90lbs LR
, 2x seio M620.
kole tang, bicolor angel, mandarin dragonette, ocellaris clown / BTA , cleaner shrimp, 2x peppermint shrimp, a variety of soft, SPS
, and LPS
corals, orange linckia star.