Kordon pH Increase for Aquariums The Kordon pH Increase for Aquariums helps rapidly alter the pH levels of the aquarium, This formulation works in both fresh and saltwater tanks and can be used with Kordon pH Stabilizers, This mix helps normalize the pH levels of the water that are affected by the biological and chemical activity in the water, Makes water more alkaline, Works well with Kordon pH Stabilizers sold separately, Each bottle treats 2 800 gallons, For all Saltwater Fish and African Rift Lake Cichlids, After verifying current pH level use pH Increase to raise pH to desired number, Add 4 drops per gallon of aquarium water, Wait 15 minutes and test the water to verify the results if needed add another dose until desired pH level is reached, Some fish are sensitive to pH changes so adjustments may need to be limited to no more than 0, 2 pH at a time in any 24 hour period Item, 4 oz, SKU: RPS13612