don't mess with adding perolite to fox farm....have used FF for 4 years it's my favorite growing medium just plant and go....no additives... just follow fert. schedule for Veg. and Bloom cycles ( check out their nuets good stuff)
problem with not using a "cloning" solution is the root-inducing hormones speed up plant processes. When a stem develops roots, it must change from making green stem cells to manufacturing undifferentiated cells , and finally making root cells. Check out Ed Rosenthal's pot books for cloning...