Liquid Alkaline Buffer™ is a non-phosphate buffer to raise pH and buffer with Liquid Acid Buffer™. Both buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem. Liquid Alkaline Buffer™ raises pH and buffers between 7.2 and 7.8. It is gentle, safe, and enhances the freshwater environment. Compatible with all other Seachem buffers. Contains sodium, potassium, magnesium, and other bicarbonate salts.