Seachem Fish & Aquatics Replenish, 500ml, White/Blue

Replenish is a proprietary blend of salts designed to replenish physiologically relevant minerals that are removed by reverse osmosis or deionizing filtration. Replenish restores General Hardness (GH) using a balanced blend of both soft (sodium, potassium) and hard (calcium, magnesium) salts. Restore and maintain GH Replenishes necessary minerals removed by RO/DI Necessary to prevent osmotic stress and osmotic shock Directions: Add 5mL (1 capful) Replenish to 40L (10 US gallons) to raise GH by 1 meq/L (2.8 dGH). Recommended restoration level into DI or RO water is 1-2 meq/L which is 5 mL per each 20-40 L (5-10 US gallons.)