"Discus Buffer® helps to replicate the ideal Discus environment (low pH
& low GH (General Hardness)). Discus Buffer® will lower pH and keep
it lowered. Discus Buffer® also softens water by precipitating calcium
and magnesium. Use Discus Trace™ to restore the proper level of trace
elements and feed NutriDiet® Discus Flakes for thriving, healthy Discus.
Contains phosphate buffers and conditioning agents. Safe
for all freshwater fish acclimated to acid pH."