And the Aquavitro response:
Quote:
An alkalinity of 9/10 dKH and a magnesium of 1400 mg/L are within specification. A calcium of 590 is not. I checked the certified lab results and they show a calcium of 436. Have you double-checked the calcium concentration with another method or maybe you could have someone else test it for you?
I suggest not using a heater and don't mix it too long to avoid excess cloudiness. If you are using a large powerhead this will also cause precipitation. Mixing too long or mixing too hard (as with a large powerhead) will introduce excess CO2 which causes precipitation of carbonates. Elevated temperatures will reduce the solubility of calcium carbonate also creating precipitation.
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