The 40L bag appears to be the top choice for clay stones in hydroponics. These stones have a slightly rougher texture compared to hydroton, which some may find less visually appealing. Cleaning them out is easier than dealing with hydroton. During transportation, some sand may be generated due to the stones rubbing together, but this can be easily washed out. The sizes of the stones vary from very small to very large. After being used in hydroponics, they effectively aerate soils, although…
