• 4 kg mineral supplement for aquariums, designed to restore and maintain mineral balance and general hardness (GH) • Does not contain sodium or chloride, unlike other similar products • Ideal for use with reverse osmosis (RO), deionized (DI), or any mineral-deficient water • Recommended to add when setting up the aquarium or during water changes, never to replace evaporated water • To increase GH by 1 meq/L (3 dH), add 16 g (1 tablespoon) per 80 L of water • For optimal solubility, mix with 1 liter of water before adding to the aquarium • The mixture may create a temporary white haze that disappears in 15-30 minutes • Dosage can be adjusted according to water hardness and the needs of aquatic plants • The product may become compacted over time, but maintains its effectiveness • Allows you to maintain optimal conditions for aquatic life and plant growth in the aquarium