Do I need to use a mild nutrient solution for clones?

[vermiculite]

I am new to hydroponics, and i have a few plants in soil and a few in the 11 plant garden. I have taken clones from the plants in soil, and they are doing fine in vermiculite and plain water. I also have taken a few clones from my hydro-plants, and they are not doing fine in only vermiculite and water. Do I need to use a mild nutrient solution for theses clones? Is vermiculite o.k. or should the clones be put in the 11 plant garden? and watered 3 times per hour? any info will help out alot, thanks