I just replace my 250 watt metal halide with a 4X24 sunpower and can't say I can see a difference in the brightness. I also run a 10X54 powermodule over the tank and can grow sps in the sand 24 inches away.
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tank 1 260 mixed reef, 3 ai hydra , Bubble magus curve 9
tank 2 300 gallon mixed reef. 3 evergrow It5080, skimmer bubble king
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