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- Feb 18, 2018
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I had a Brown diatom algae bloom about 30 days after adding new rock to my fairly new tank. I added a can of xport po4 cubes to a media bag in my sump. Seemed to clear it up almost completely in a few days. About 2 weeks in, now I have a bit of algae growing again. I have cut back on feeding my fish, but have 11 corals in the tanks that I target feed. Reef chili and mysis alternating nights when their tentacles are out. My corals are growing fast... but it also seems to be feeding the algae as well. Should I switch to gfo or will the cubes work again in time? Thoughts please.


