Do you know how much ppm of cal. that your reef intakes per day?
"Mixed Reef & SPS Dominant systems - Dosing by calcium (coral growth) demand Calculate the daily or weekly dose of each supplement according to the dosage of Red Sea’s Foundation™ supplements or to a known uptake of calcium. (Add 1ml of Color supplement for every 20ppm of Calcium added per 100 liters (25 gal) of aquarium water or for every 2g of calcium uptake.)?