There are some folks who think you can root about anything in water. This is not the case. Your chances of success are much better in a closed, high humidity container.

Airstone is a porous insturment that is used to infuse oxygen into fish tanks. The effort to get oxygen to the roots of cuttings in water, in my opinion, is futile. Most roots need some air, and this is best accomplished in fast drainging, soiless rooting medium.

The airstone is used at the end of the air pump hose underwater to breakup the air bubbles into smaller ones. Many plants will root easily in water but when the roots get to about an inch long they will need to be planted in soil. These roots are fragile and require care to prevent damaging them while planting in soil. Al