Mine are about 10" off the water. I switched from MH to led at Christmas. I started at 30% and gradually ramped them up to 100%. I start my day at 20% 14k and over an hour they go up to 100% 14k then after 3 hours I have them go to 12K for a couple of hours, then back up to 14K for 2 hours then fade off. I've only had one Favia bleach so far. this is with the artificial program.
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"Rules are for the obedience of fools and the guidance of wise men."
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