Fertilizer

Fertilizers specifically adapted for aquascaping are recommended for weekly use. These are generally composed of nitrogen, iron, etc., but chelated with EDTA. This chelator has the clear advantage of making the added element (nitrogen, iron, etc.) bioavailable, meaning in a form that can be assimilated by aquatic plants.

Aquascaping fertilizer can be divided into four parts: CO2 and the substrate on one hand, which we will not discuss here, and then the fertilizer composed of macronutrients (Nitrogen N, Phosphorus P, Potassium K, Calcium Ca, Magnesium Mg, and Sulfur S) and finally the fertilizer composed of trace elements. The fertilizer composed of trace elements is often offered as a mixture. The essential trace elements for aquatic plants are: boron, chlorine, cobalt, copper, iron, manganese, molybdenum, and zinc.