sera floredepot is placed underneath the actual bottom ground (sand, gravel) when setting up the aquarium. The balanced blend of sand, peat, essential nutrients and trace elements allows plants to grow on quickly. Also, the plants are supplied with nutrients during the first phase (4 – 6 weeks). The formation of strong roots is supported by the special structure of the bottom ground. Use 1/2″ across the bottom of the aquarium.
