No It's always been that high and I've never been able to get it down. I tried dosing vinegar but it didn't help for more than a few hours. It's strange becuase I don't dose Kalk at all which would be my first guess as to why the Ph is so high.
IO salt for the last year before that Crystal Sea with similar Ph problems. I have a new Ph probe calibrated with 10.0 & 4.0 solution & Bingman's borax solution.
I have a down draft skimmer so the tank is well areated.
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