Free Reef Tank Dosing Calculator
Calculate exact doses for Calcium, Alkalinity, and Magnesium. No signup required — bookmark and use anytime.
Supports popular products from Brightwell, Seachem, Red Sea, ESV, Tropic Marin, and more.
Enter your current and desired values to calculate the dose
pH: Minimal impact
⚠ Do not exceed 10 ml per 20 gallons per day
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