Perfect Corals Part B Alkalinity Dosing Calculator for Reef Aquariums
Perfect Corals Part B Alkalinity Dosing Calculator for Reef Aquariums
REEF DOSING TOOL
Perfect Corals Part B Calculator
Estimate an alkalinity correction or calculate a maintenance dose
based on your reef aquarium's measured dKH consumption.
Suggested Ideal Range7–8 dKH
Upper Threshold8–9 dKH
Alkalinity Correction Calculator
Enter your actual water volume, current alkalinity, and target
alkalinity.
gallons
Include operating sump volume and subtract displacement from rock,
sand, and equipment.
1 dKH equals approximately 17.848 ppm as CaCO₃.
dKH
dKH
Perfect Corals suggests 7–8 dKH, with 8–9 dKH as the upper
threshold.
Estimated total Part B correction—
Total amount required to reach the selected target
Requested alkalinity increase—
—
Maximum correction per day1.4 dKH
Approximately 25 ppm as CaCO₃ per 24 hours
Maximum Part B correction dose per day—
Calculated from the 1.4 dKH daily correction limit
Estimated minimum correction time—
Larger corrections should be divided over multiple days
Alkalinity Maintenance Calculator
Enter the measured alkalinity decrease and select whether the decrease
occurred over one day or one week.
gallons
Select the unit shown by your alkalinity test.
dKH
Test at approximately the same time at the beginning and end of the
measurement period.
Estimated daily Part B dose—
Starting estimate for daily dosing
Estimated weekly amount—
Total calculated amount over seven days
Four doses per day—
Approximate amount per dose when divided four ways
Twenty-four doses per day—
Approximate hourly amount when using a dosing pump
Important:
This calculator provides an estimate. Test alkalinity before and after
making adjustments. Use actual system water volume, make gradual changes,
shake Part B before use, and follow the product label.
COMPLETE REEF DOSING SYSTEM
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