NPK-Booster adds nitrate, phosphate and potassium in biologically balanced proportions, which means:
The nutrient proportions have been chosen so that all micronutrients are taken up by the plants in roughly equal proportions. This means that even with long-term, regular application both a deficiency and also the harmful accumulation of individual nutrients is avoided.
The addition of N – Nitrogen (Nitrate) and P = Phosphorus (Phosphate) is not necessary in normal community aquariums, because these substances usually end up in the aquarium in sufficient, or often even too high, volumes via the food. In aquascaping aquariums the situation is different.