Rekharb | Liquid KH Booster

(1 customer review)

Liquid KH Booster for Aquarium Plants

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.

$16.99 $12.99

Dosing Instructions

1 pump(2ml) per 4 gallons raises KH 2.8 degrees(1meg/l) and adds 40ppm(mg/l) potassium. A KH of 3-6 degrees is suggested.

Guaranteed Analysis

Information regarding the heavy metal content of this product can be found at Association of American Plant Food Control Officials

1 review for Rekharb | Liquid KH Booster

  1. 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.

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