Replenish™ is a specialized blend of salts designed to restore essential minerals that are typically removed during reverse osmosis or deionizing filtration processes. It effectively replenishes General Hardness (GH) by utilizing a balanced combination of both “soft” salts, such as sodium and potassium, and “hard” salts, including calcium and magnesium. Maintaining proper mineral content is crucial for aquatic species that rely on a mineralized environment for their osmoregulation. A deficiency of these minerals can lead to osmotic stress, which, if severe, may result in osmotic shock and potentially rapid death of the organisms. To restore GH levels in a planted aquarium, it is recommended to also use Equilibrium™ for optimal mineral balance and overall aquarium health.