As a natural product, it contains humus, organic iron complexes, as well as inorganic nutrient depots
Aquatic plants take root quickly, inhibiting the growth of algae in the critical setting-up stage
Promotes the growth of important micro-organisms in the substrate
The sticks are mixed in with the gravel when the aquarium is set up, immediately activating the substrate
For subsequent dosages a few sticks have to be pressed into the gravel