Vitamins, plant enzymes and other organic agents constantly regenerate in nature in combination with natural sunlight. These vital substances not only promote the health and colorfulness of the fish, but also the growth of the aquarium plants. Aquaria lack natural sources of vitamins. In addition, most vitamins are not stable in the long term or are quickly exhausted. So it is all the more important to supplement these essential vital substances regularly. With boron, iron and manganese Promotes healthy, even growth For lush green leaves and intense, bright colors Optimal effect as part of the Dennerle fertilizing system (V30, E15, S7) For lush plants with vibrantly colored leaves