Did you get these bulbs to try out? I'm looking at them to replace my XM 10K bulbs. I'm also considering the XM 15K and 20K bulbs. I'm using Icecap ballasts,so I can run any one of these bulbs. I am finding my 10Ks to be too white and my corals all tend to fade out to browns even with 2x96w actinic PCs. I want more blue, but I don't want to go extreme with it.
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I retired and got a fixed income but it's broke.
Ed
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50 gallon FOWLR, 10 gallon sump.
130 gallon reef, 20 gallon sump, 10 gallon refugium.
10 gallon quarantine.
60 gallon winter tank for pond fish.
300 gallon pond with waterfall.
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