I just installed one on a 90 gallon tank and was able to bring my Phosphates down from about 1 ppm to about 0.03 ppm in less than a week (I didn't test the water every day). You can actually see the Hair Algae dying off on the live rock now. Overall I am very pleased with the results however I have read that they can have adverse effects on some corals. Now if I can only get my Nitrate levels down a little bit more.
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Last edited by Palster; 10-27-2006 at 06:37 PM.
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