45L HYDROCORNClay Pebbles are manufactured using a mix of the best qualities of pure clay. They are baked in an open furnace using high grade clean fuels. This guarantees absence of heavy metals or other contaminates. Gold Label Hydro is the inert hydroponics substrate of choice for professionals. The 8-16mm uneven pebbles provide stability and the unique uneven shape is an ideal surface for roots and beneficial bacteria. The porous structure has a high water capacity and is suitable for both eb/flood and top irrigation systems.
Directions for use:
Before you go to use you will want to soak and rince your Hydrocorn for the first time to measure the ph value as new pebbles have a high ph. The recommended ph range is between 5.5-6.5 and depends on your nutrients.