My 90 gal mixed reef that is over 20 years old has me stumped. Normally my Trident doses Alk and Ca as I have scheduled and the tank maintains an average Alk of 9.5 and Ca at 429. Over the past 3 or 4 weeks, my Ca started going high to the point I had to stop dosing any Ca at all. I have not been adding any Ca for about 2 weeks now and the Ca readings continue to hover around 530. Odd.
I have double checked my Trident against Hanna checkers and it agrees with the Ca reading. I have not changed anything else in my tank. My corals appear fine, but not showing strong growing points.
What could be causing my corals to not be consuming Ca?
I have double checked my Trident against Hanna checkers and it agrees with the Ca reading. I have not changed anything else in my tank. My corals appear fine, but not showing strong growing points.
What could be causing my corals to not be consuming Ca?