Advanced Hydroponics GROW

Dutch Formula - General This fertilizer mix consists of three components. It is ideal for use on soil and rock wool. It is perfect for hydroponic systems. The three components are dosed in different ratios during the growth and flowering phases. Detailed dosage instructions in German are included on each bottle. Dutch Formula - GROW Dutch Formula GROW creates the perfect conditions for the next development phase. You should stop using GROW 21 to 30 days after the start of the flowering phase (12 hours).