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#10
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![]() You've probably got a lot of phosphate bound to your rocks and sand. Three or four years ago when I first tested my tank for it I was at .75. So then I started to do all of those things that I listed earlier including running 2 cups of GFO that I changed once or twice a month. At first I used rowaphos because it was readily available but then I switched to BRS GFO and even a container of HC GFO to keep my costs down. Eventually I drew it all out of my system and now I only need 1 cup that I change every two months to maintain it at an undetectable level. Macro algae no longer grows for me, I have no more bryopsis, and my glass only needs to be cleaned once a week.
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"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour |