AquaPro Kalkwasser is high-purity calcium hydroxide for preparing reef top-off solution that supplies calcium and alkalinity while helping support stable reef pH.
Can help raise pH while supplying calcium and alkalinity
AquaPro Kalkwasser is high-purity calcium hydroxide formulated for preparing kalkwasser solution for reef aquariums. When mixed correctly with purified water, the solution supplies calcium and hydroxide that react with dissolved carbon dioxide and bicarbonate in the aquarium, contributing to calcium and alkalinity replacement.
Kalkwasser is commonly added slowly through top-off water to replace some or all evaporated water, depending on system demand. Because the solution has a high pH, it must be prepared and dosed carefully to avoid rapid pH changes.
For dosage directions and available sizes, please refer to the Dose Calculator below.
Dose Calculator
Dose guidance for Kalkwasser.
Master dosage
1
Calculate Water Volume
Enter internal tank dimensions if you do not already know the actual water volume.
Formula: Length × Width × actual water height. Use internal dimensions for a closer estimate. Substrate, rocks and equipment reduce actual water volume.
Estimated water volume
This volume has been entered automatically into the dose calculator below.
2
Calculate Product Dose
If you already know the actual water volume, enter it directly here.
Water-volume calculation is not used for this product.
This product is dosed by food, direct application, or another method. Follow the master dosage and directions shown below.
Recommended dose
1
Calculate Product Dose
g
Recommended dose
1
Direct-Use Directions
This product does not have a reliable dose that scales from total water volume or a measurable treatment amount in the current master.
Use the master dosage exactly as shown.
Master dosage:
Directions:
Available sizes:
Caution:
Important: Always follow the physical product label. If the packaging instructions differ from this calculator, use the packaging instructions. Do not exceed the recommended dosage.
