Dutch Formula Micro 3 from Advanced Hydroponics of Holland is part of a high quality 3 part nutrient system. It contains all the other elements plants need for healthy development. As well as microelements in chelated form, it has pH buffers to stabilise the solution. Micro 3 is for use throughout the entire life of the plant.
The 3 part system is flexible enough for beginners and growers with experience to get great results. Dutch Formula Micro 3, as well as the other components, dose at different rates depending on which stage of growth you are in.