Quote:
Originally posted by moremsgplease
I have heard that the depth of water will cause a bulb to loose its strength. Will a 150 watt 10000ºK HQI double ended metal halide bulb be efficient enough to keep a mixed reef in a tank that is 24" deep?
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Not really enough light. For a 24" deep tank you should have ideally 250W or 400W. Anything over 27" should have 400W. With a 150 you could probably keep some LPS and softies, but SPS would really struggle and probably not have much color to them except for brown and green