Reef Dosing Calculator
Calculate precise dosing amounts for calcium, alkalinity, magnesium, and essential reef parameters
Our professional reef dosing calculator helps you determine the exact amount of additives needed to maintain optimal water chemistry in your saltwater aquarium. Whether you're dosing calcium, alkalinity (KH), magnesium, nitrates, or phosphates, our calculator provides accurate measurements based on your tank volume and current parameter levels. Perfect for maintaining stable reef tank conditions and promoting healthy coral growth.
Enter the total volume of water in your aquarium, including the sump.
Choose the additive for which you want to calculate the dosing amount.
Use slider to set the latest measurement value of the selected parameter.
Use slider to set the target value you aim to achieve for this parameter.
This is the calculated amount of the chosen additive needed to reach your target value.
Achieve perfect water chemistry with precise dosing calculations that prevent parameter swings and ensure optimal coral health.
Simply enter your tank volume, current parameter levels, and target values. Our calculator will determine the exact dosing amount needed using proven reef chemistry formulas.
Precise Calculations
Laboratory-grade accuracy for all reef parameters including calcium, alkalinity, and magnesium dosing.
Cost Analysis
Track your reef aquarium expenses with detailed cost analysis for all popular dosing brands.
Brand Support
Compatible with Red Sea, Tropic Marin, Seachem, Aquaforest, and many more reef additives.