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Old 12/20/2017, 10:36 PM   #9876
SantaMonica
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Join Date: Feb 2007
Location: Santa Monica, California, USA
Posts: 2,479
Quote:
I thought yellowing algae was more an indication of the scrubbers illumination period being too long for a given level of nutrients in the water
It's too little iron etc, in proportion to how many nutrients there are. Photosaturation is a moving target, based on nutrients available.


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Inventor of the easy-to-DIY upflow scrubber, and also the waterfall scrubber that everyone loves to build:
http://www.reefcentral.com/forums/showthread.php?t=1424843
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