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To raise calcium by 20 ppm in 100 L: 12.5 ml.
Maker’s daily maximum: 15.6 ml per 100 L (15.6 ml for 100 L).
Beginner: 5 ml per 80 L (20 US gal) twice a week. Target 380-420 mg/L. Drip formula: ml = liters x mg/L rise / 160. Max 12.5 ml per 80 L per day.
• Excess calcium can deplete alkalinity.
• Do not mix directly with carbonate supplements.
Ionic calcium (160,000 mg/L) with proportional Mg and Sr.
seachem.com/reef-complete.php