Hydroponic Clay Balls

This German-made Premium Hydro Clay starts with the highest grade natural clay and follows a strict grading formula and manufacturing process which guarantees a more consistent spherical shape and size with a more uniform and rigid structure that resists breaking.

These Hydroponic Clay Balls are available in a consistent 8-16mm or 4-8mm diameter that's long lasting and made from 100% freshly mined raw clay material — free of impurities and ready to use straight out of the bag.

Great for hydroponics, propagation or mixed into a potting substrate added aeration and drainage.

Available as 4-8mm or 8-16mm in two convenient sizes, 2.5L or 5L.