This bottle of reagent grade ammonium chloride is for use when fishless cycling. Concentration is 2 mg/L-N (2ppm). Dose 4 drops per gallon (4 litres approx) of aquarium water.
Use with One and Only Nitrifying Bacteria for optimum results. 4 drops equals 0.20 ml so this bottle will treat 600 gallons (2400 litres approx).
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