I agree. There *have* to be excess nutrients in the water for the lights to do anything. I've been chasing that dog (unsuccessfully). I do WEEKLY ~20% water changes, all my parameters are bang-on and I have a light bio-load and I feed lightly so I don't know what else to do.
I may be chasing ghosts here but I've seen a few tidbits of evidence that indicate to me that my lighting is not helping the situation.
Phosban may well help but the damned stuff is expensive and I don't have a very elegant way of running a reactor with this setup. Besides, phosban is just masking the issue of excess phosphates anyhow. I'd prefer to get to the root cause.
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-Mark
29 Gal Bowfront w/24" LED Lights. DIY HOB Sump (5.4 Gal) MP40. Orange Spotted Watchman Goby, 2 Clownfish and a few hermits.
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