1,rainbow crystal soil 2, new artificial crystal soil 3,flower crystal soil 4,soil ... meter enlarge big CE new crystal soil,hydro culture soil, rainbow clay1) Ag nano crystal soil is a new type ... environmental material instead of real soil and included of nutrtion. . 2) It's non-toxic, odorless, and clear3) It can ... 15g / 30g / 1kgcrystal soilcrystal soil crystal soil, hydro culture soil, rainbow clay