Unbranded Bulk Expanded Hydro Clay Balls Hydroponic
BULK EXPANDED HYDRO CLAY BALLS HYDROPONIC Hydro Clay Balls are a great growing medium substrate for hydroponics consisting of spheres of expanded clay, which provide inert structural support for plant roots in hydroponic and aquaponics systems. The clay pebbles are manufactured from special types of clay that have a low soluble salt content. Because of this, they are particularly suited for use in closed hydroponic cultivation systems. They have both high porosity and high air content which stim
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