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Im thinking of maybe changing some time down the road changing from my 300 watt vho to mhs on my 20L. Ill either go with 175 watt mh or 70watt mh. which would be better or should i not chage?
If you are keeping LPS, shrooms, zoos, and softies, you wont need to up grade to MH. It may cause more problems if you do. If you go with low light SPS you wont need to upgrade to MH either. Keep in mind that MHs put out a lot of heat which is difficult to control in a nano.
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