There is nothing I have ever found that is more versatile than rockwool for growing my clones in. It can be used for clones and transferred into any growing medium I can think of. I grow with soil most of the time but I have customers that purchase our clones and drop them right into hydroponics, aeroponics, aquaponics, or any other typed of grow. Rockwool works, plain and simple.
We drop all our youngin's be it seeds or clones directly into 2 inch rockwool cubes. In about 3 weeks to a month we have thriving clones with not only a growing root system in place but a topside plant that is green and has sprouted some new growth. These plants are now ready to transplant into the growing medium of your choice. All clones are fully guarranteed or we will replace them.