Light in Refugium?

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Originally Posted by Jaws

I don't mean to hijack but this question is related to the poster's and might help them out too. Is there an adavantage other than cost in using a low watt MH light (say 150W) over some of the bulbs you buy at Home Depot? Will you experience faster or better growth with a better light or is it overkill? Thanks.

If using for macro, for the growth one can get with a relatively inexpensive PC, don't think a MH is required, plus considering the price for a MH (initial and on-going) probably not the most cost efficient either.