Organic expanded clay pebbles grow media for hydroponics

Most of the appearance characteristics of clay pebbles are round or elliptical spheres, but there are also some gravel-like clay pebbles, that are not round or elliptical spheres, but irregular gravel. The shape of clay pebbles varies from process to process. Its surface is a hard shell, which is pottery or enamel, which has the function of water-proof and air-retaining, and gives clay pebbles high strength. The appearance and color of clay pebbles vary with the raw materials and techniques used. The color of roasted clay pebbles is mostly dark red and ocher red, and some special varieties are gray-yellow, gray-black, gray-white, blue-gray, etc.

The particle size of clay pebbles is generally 2-30mm, and the largest particle size is 30mm. Widely used in construction, industry, transportation, landscaping, gardening, planting, environmental protection, food hygiene and other fields.

1. good air permeability
2. good drainage
3. The inner fine and porous structure, has better water and fertilizer retention
4. PH value between 7-7.5
5. Light weight
6. ideal cultivation substrate