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REKHARB is a liquid KH booster. This fertilizer has been specifically formulated to safely increase carbonate hardness (KH) in planted tanks.
Follow the dosing instructions provided with our KH booster to get the desired effect from this fertilizer.
Terry Mann (verified owner) – January 15, 2018
I’d been using a digital scale to weigh out powdered KH additive to add to my weekly replacement water and suddenly, I had twice the dKH that I desired! I change water in 4 gallon increments of RODI, so, the 1 pump measure is perfect.
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Terry Mann (verified owner) –
I’d been using a digital scale to weigh out powdered KH additive to add to my weekly replacement water and suddenly, I had twice the dKH that I desired! I change water in 4 gallon increments of RODI, so, the 1 pump measure is perfect.