Seachem Neutral Regulator 500g

"Neutral Regulator® adjusts pH to neutral (pH 7.0) from either a low or
high pH and maintains it there. It softens water by precipitating calcium
and magnesium while removing any chlorine, chloramine, and detoxifying
ammonia. The use of Neutral Regulator® makes other conditioning
unnecessary. To lower pH below 7.0 use Neutral Regulator® with Acid
Regulator™ (or Discus Buffer®). To raise pH above 7.0 use with Alkaline
Regulator™. All of these products will enhance and stabilize the freshwater
aquarium environment. For further freshwater environment enhancement,
use Fresh Trace™ to restore the proper level of trace elements and feed
NutriDiet® Tropical Flakes for thriving, healthy freshwater community fish.
Contains phosphate buffers and conditioning agents. Safe
for all freshwater fish acclimated to neutral pH."