Aquarium KH (Carbonate Hardness) Calculator
Estimate baking soda (sodium bicarbonate) needed to raise carbonate hardness (KH) to a target dKH.
Baking Soda Needed
9.37 g
Approximate Teaspoons
1.87 tsp
KH Increase
3.00 dKH
Note
Add gradually over hours — sudden swings stress fish.