Your location: Fish > Seachem

Seachem Acid Buffer

Acid Buffer™ is phosphate/carbonate free buffer for lowering and stabilizing pH in the acid range of pH 4-6.8. It is designed primarily for freshwater use, is ideal for planted aquaria, and may be substituted for Discus Buffer™ wherever phosphate buffers may pose a problem (such as in high calcium waters or aquaria prone to undesirable algae growth).

Because it does not contain phosphates it is ideal for the planted aquarium, where excess phosphate could contribute to undesirable algae growth.


To lower pH, use 2 g (1/4 teaspoon) to every 80 L (20 gallons*) daily until intended pH is reached (this dose lowers alkalinity by about 0.2 meq/L (0.6 dKH)). Best if added directly to aquarium. If water is soft or not well buffered, use with Alkaline Buffer™ . TIPS: Larger doses may be required in very hard (KH) alkaline waters.

It is compatible with Discus Buffer™, Neutral Regulator™, and Alkaline Buffer™. It may be used to safely lower pH in marine water. A 250 g bottle treats 800 gallons.

$6.30 ea
Acid Buffer, 250 gm