Tanganyika Buffer, 4 kg / 8.8 lbs A Blend Of Carbonate Salts Designed To Enhance The Natural Environment Of Cichlids Increases Water Hardness, Buffer Capacity, And Ph. To Replicate The Natural Environment For optimum replication of the Tanganyika environment, use with Sachem Cichlid Lake Salt and Sachem Cichlid Trace 250 Grams Treats Up To 1000 Us Gallons