Expanded clay 4 – 8 mm – 20 litres You are purchasing 20 litres expanded clay the grain size 4-8 mm of us itself bottled for those on a tight budget Data: Contents: 20 L Expanded clay is a roots Medium for the plant breeding in the hydroponics industry and can also be purchased as a superb insulating material. The expanded clay provides the plant with a also secure fit such as earth, but is so light that can the roots to spread out. Expanded clay is both oxygen and water to the plants. Many advantages compared to Earth that cultures: Germ free Strukturstabil Pure Mineral No more rot Reusable KW and speichernd Both chemically and biologically neutral In contrast to compost contains expanded clay but no different nutrients. They have to above the water. This Hydro stones are particularly suitable for cultivation with ebb & flow systems. So you can, as well as drainage support under the pot cultures (drainage) or as a base on loose the ground if required. Expanded clay is to seal the planet and too heavy can be put 10% to 40%.
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