sera floredepot is a long-term gravel substrate with growth promoter for freshwater aquariums. The 2.4 kg bucket is sufficient for a 60 litre aquarium, the 4.7 kg bucket for a 100 litre aquarium. sera floredepot contains essential nutrients and trace elements and should be used with new aquarium set-ups and larger rearrangements. During the first 4-6 weeks sera floredepot provides the plants with everything they need in order to form strong roots and lush green leaves. sera floredepot is free from nitrate and phosphate.