Plagron Hydro A + B is a basic biomineral fertilizer for growth and a flower, for plants growing in hydroponic growing substrates. All nutrients contain chelate form, which is easy to absorb for plants. The Plagron Hydro A + B fertilizer does not impregnate the capillary system, so it is suitable for all types of hydroponic systems. The ratio of the basic nutrients of NPK fertilizer is for component A (5-0-2) and for component B (2-4-9). Use the Hydro A + B fertilizer along with Plagron accessories to maximize your yield.