I've been using the XM bulbs for a few years now. When I tried the 10000k bulb my tank started a huge algae bloom. Nothing else had changed. The corals were ok but really didn't grow that much. Switching to the 15000k bulb produced much better results and I'm about to test the 20000k bulbs to see how that works.
What would everyone recommend for a bulb? The original was a 14K this is a 10K......... 150W
01-18-2009, 02:56 PM
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