Check the listing for details. Microbe-Lift KH Alkalinity Bio-Active Booster 2 lb 097121210616. Condition: New. Listed at 16.99 USD. Microbe-Lift KH-Carbonate Alkalinity Booster 2 lb Container 2 Lbs. (0.9 kg.) (CABPSM) – approximately 49 scoops (Blue) per container Essential for Nitrification When pond carbonate levels fall below the necessary level, nitrification will stop and will fail to start again. With the loss of KH (carbonate alkalinity) pH levels will vary and pH will be difficult to control as KH stabilizes pond pH. The natural biological ammonia removal process in ponds referred to as nitrification and:Requires the presence of KH (carbonate alkalinity) at all times.Utilizes 7.1 mg. of KH for every 1 mg. of ammonia removed.Continuously depletes KH so KH must be monitored and restored as necessary with MICROBE-LIFT/KH Bio-Active Booster.Maintain 50-100 ppm KH at all times to assure nitrification. IngredientsContains a proprietary blend of Carbonate Hardness constituents and bacterial cultures. CautionsKeep out of the reach of childrenFollow directions carefullyAvoid eye contactAvoid inhaling powder-dust A full flat level scoop (enclosed) will raise the KH by approximately:80/ppm in 30 gallons (113 L)*50/ppm in 50 gallons (189 L)25/ppm in 100 gallons (378 L) *Example:1000 gallon pond and need to increase by 80 ppm:​1000/30=33.3 scoops needed.​100 gallon pond and need to increase by 80 ppm​100/30=3.3 scoops needed