samedi 6 janvier 2018

Need help with high calcium, phosphate!

I have a 50G reef tank and for several months I have been dealing with high calcium and phosphate. I have done several water changes and every time it goes back up. Some of my corals are doing great and others are dying.
My calcium levels are higher than 520 (that's all my chart goes up to) and my phosphate is 10.0ppm. Any help would be appreciated?


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