Seachem Ph-lowering buffer

Designed for use in planted aquariums. Converts KH to available CO2 Contains no phosphate. Acid Buffer is a phosphate-free, Ph-lowering buffer specially designed for the planted aquarium, or for very hard water. Acid Buffer converts carbonate alkalinity (KH) into plant-available CO2. What's more, its phosphate-free composition means no algae or cloudiness problems, as can be the case with autres phosphate buffers on the market. Acid Buffer provides a significant pH reduction.