Randy Holmes-Farley
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If the calcium product is adequately pure (don't know if the one you are using is), I do not think that raising calcium needs to be done particularly slowly. 50 ppm per day seems OK.
When using a product of unknown purity, I'd go slower. Spread it out over more days in case it has excessive metals, ammonia, etc.
When using a product of unknown purity, I'd go slower. Spread it out over more days in case it has excessive metals, ammonia, etc.