Hi everyone. I test my water at least every week, change out a gallon, clean filter sponges, etc. In other words, the tank is well maintained. I had been dosing calcium and magnesium but stopped because the ca wasn't ever low and has even gone up over the past several weeks (450-550) without any supplementation other than water changes. Mg was being supplemented c. 2.5ml twice a week with levels around 1200-1300. Again, in the last two weeks, it has risen (1300-1460) without any supplementation. Kh up from 8.5-9.5, which is not a problem. The only thing I've added is a little Seachem buffer, as the ph was creeping down. I know I have a co2 problem which keeps it down but I try to keep the range from 7.7-8.0. Nitrates 5ppm. The corals look fine. Fish happy too. My question is why are my ca and mg going up seemingly on their own? Could the buffer increase it that much? I only add a tad or two at a time when the recommended dose is a teaspoon for my tank. Since the parameters are overall good I haven't wanted to tinker with the water much. Any thoughts on this mystery?
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12g Nanoreef. Zooanthids, Ricordia, Star Polyps, Acans and two clownfish. CF Lighting, 75% actinic blue, 25% 10,000k white.
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12g Nanoreef. Zooanthids, Ricordia, Star Polyps, Acans and two clownfish. CF Lighting, 75% actinic blue, 25% 10,000k white.