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07/21/2011, 11:43 AM
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#1 |
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Registered Member
Join Date: Feb 2011
Location: Las Vegas, NV
Posts: 202
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400 watt MH
How high should 400 watt MH be placed over my 280 gallon mix reef?
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Mike Get It Right!!! Current Tank Info: Current Tank Info: 280G w/ 100G sump/ refugium, 3 x 400w MH, 4 x 65w fluorescent, Vertex skimmer, and RKL controller |
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07/21/2011, 11:54 AM
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#2 |
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Registered Member
Join Date: Mar 2011
Posts: 74
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I think it depends on what type of reflector you are using. I have a Lumen bright wide reflector that I keep about 16 inches off the water. In my previous tank in which I did not have a reflector, I kept the light about 12 inches above the water. Put the light much closer than that and you'll probably start heating up your water pretty quickly.
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75g rimless, 30g sump/refigum. Lighting: 400w MH with lumenbright wide reflector, 2x 48" actinic VHO. Skimmer: SRO 1000sss. Flow: Vortech MP40, Tunze 6045 (soon replacing with MP10). Return: Mag 9.5 Reactor: BRS GFO reactor |
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