API Proper pH 7.0

API Proper pH 7.0 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

250g container 

1 scoop for every 40L of aquarium water