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- Aug 8, 2016
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so after I got water tested at LFS (0,0,0) (7.7 ph, 8.8 dKh, 480 Ca), emp suggested I use a buffer for the Ph. I purchased Seachem Marine buffer, used a little less than a teaspoon per instructions for my 20l, and now there is an oily/waxy coating in the water and a gelatinous off-white goo where the water line is at the top of the tank. What is this and how do I get rid of it? I also dose seachem Reef Builder (dKH) and Reef Complete (Ca).