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- Jun 7, 2020
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I have a 40 gallon C Vue Tank. It been up and running for over a year now. My PH has just started to drop rapidly everyday no matter what I do. Last night I did a water change. My PH was around 8 after it. 12 hours later my apex alarm is going off showing PH of 7.6 I dosed my marine buffer for PH and it brought it back up past 8 to like 8.2. My question is what could be dropping my PH so quickly all the sudden when I have no had this problem before. my Alk is 12.7, Ca 421 and Mg 1258 and tank temp sits at 76.8 degrees. The only thing I have recently changes was that I added a small refugium in on of the chambers with chaeto and a light. I dont think that could be the culprit. Any advice or idea to help me fix the problem would be greatly appreciated. Thanks