Fritz R/O Recharge replenishes essential minerals and electrolytes to reverse osmosis or other purified water to reestablish the desired natural water chemistry for your freshwater aquarium habitat. The mineral salts in Fritz R/O Recharge easily restore optimal GH; TDS and KH. 

Benefits:

• Restores natural water chemistry to purified water.
• Increases both GH and KH.
• Provides a beneficial ratio of elements to improve osmoregulation.