Until recently I didn't run a heater. I use to, but took it out as it never turned on. But with the removal of some pumps, I guess the heat they produced, isn't there anymore. So I have put my heater back in.
I personally only run 1 X 300W standard heater. Nothing special and it keeps my temp at a constant 78-79F without issue. I have about 200G of actual water volume.
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Setup: 180G DT, 105G Refuge (approx. 300lbs LR, 150lbs Aragonite)
Hardware: Super Reef Octopus SSS-3000, Tunze ATO, Mag 18 return, 2x MP40W, 2X Koralia 4's Wavemaker
Lighting: 5ft Hamilton Belize Sun (2x250W MH, 2X80W T5HO)
Type of Aquarium: mixed reef (SPS & LPS) with fish
Dosing: Mg, Ca, Alk
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