Very tiny clay pebbles, perfect for decorative clay pebble tray. Clay pebbles are used for hydroponic applications as a medium, aerator, for improved soil drainage, or as a water pebble tray to add extra humidity for your plants. Their air to moisture ratio makes them ideal for hydroponics. It holds water extremely well and offers good capillary action. It is reusable, clean, and odorless. Reuse over and over by rinsing out roots then sterilizing a very mild bleach solution (about 1/2 cup per gallon of water). Rinse well before using
Note: 4-8MM pebbles are very small size and will fall through many net pots
*Please Note - Due to its size/weight and the high cost of shipping, this item maybe available in store for a different price.