JBL 7+ 13 Kugeln Balls Plant Fertilizers

Revitalises depleted substrate, easy to apply in established aquariums. Specially produced clay balls loaded with nutrients that gives the ground new storage capacity for nutrients. Long-term supply of root fertiliser for aquatic plants Contains iron and minerals in a form readily accessible to plants through the roots Free of algae-encouraging nitrate and phosphate Depending on the size of the plants, press one or more balls into the root zone once a year