Atami Hydro Rokz pebbles are used for various growing methods, sometimes they are placed at the bottom of the flowerpot when growing on a substrate like soil. The Atami Hydro Rokz are used as an additional drainage, so the drainage and the supply of oxygen from below are more effective. Sometimes hydro pebbles are mixed in with the substrate, to make the growing medium more aerated.
The roots can branch off better. A third widely used method is growing plants directly on hydro pebbles. This is often done in combination with an oxygen pump. In this manner the roots at the bottom of the pot are constantly immersed in water with liquid fertilizers mixed in, and the oxygen pump provides enough oxygen for the roots. This growing method is very successful indeed.