IndyReefMan
Aquarium Advice Activist
It's about time to replace my MH bulbs. On my 72 gal bowfront, I'm currently running 130 watt 10,000K PC, 130 watt actinic PC, and 2 x 150 watt 20,000K MH. I really like the blue look of the 20,000K MH but am wondering if my SPS might do better with warmer color temp bulbs for my MH. I currently have a few softies, a few SPS, and a lot of LPS. I would like to start stocking more SPS. I recently read that since SPS are primarily shallow water corals, they prefer warmer color temps (eg- 6,500K). I'm afraid that warm a color temp might fuel more algae growth, plus I'm not sure that I would like that yellow look. Should I switch to 6,500K? Maybe 10,000K on the MH, or 14,000K would be better... decisions, decisions. If I do change to a different color temp on my MH, I'll have to do it very carefully so I don't shock the corals. I'd welcome some opinions on this.