A safe and effective way to raise pond alkalinity. Some buffer products use only sodium bicarbonate to raise alkalinity, which can cause a dangerous pH bounce’. Fritz Pond Alkalinity Booster contains a full spectrum of buffering agents, helping to prevent pH bounce’. Safely Raises & Maintains Carbonate Hardness (KH) Contains a Complete Spectrum of Buffering Agents, not just Sodium Bicarbonate· Prevents pH Crash· Aids Nitrifying Bacteria in Reducing Nitrite· Phosphate Free· Prevents pH Levels From Bottoming Out· Promotes Fish Health