Do not wash the product to avoid eliminating the active substances. Cover the bottom of the tank with a 1 cm layer and then cover with a 6-7 cm layer of gravel. Before filling the aquarium with water we recommend you cover the gravel with a nylon sheet to avoid moving the bottom soil when filling.
A 3,2 Kg bag is sufficient for a 100×40 cm aquarium.
A 1.8 Kg bag is sufficient for a 80×30 cm aquarium.











