Would adding Dina Grow K-L-N to the water in the aerocloner be okay?
Here's a link to the stuff,I'm not sure how to add a link so if this doesn't work then search it in ebay for details.

Dyna-Gro K-L-N 8 oz. Root Stimulator KLN 8oz Hormone - (eBay item 190161090708 end time Oct-15-07 16:10:30 PDT)