API Proper pH 6.5 Freshwater Additives; 240 gm.
API PROPER pH 6.5 automatically sets and stabilizes pH at 6.5, and also works to remove chlorine and detoxify heavy metals.
It works best with Tetras, Discus and Angelfish and contains electrolytes to reduce fish stress.
It may be used when setting up an aquarium, or when changing water