I have went totally soiless (coir mix) in the past and ended up going back to soil. I could go into the multitude of problems I had, but suffice it to say that I had no increase in yield, used alot more nutes, and ran into weird deficiencies/overfert conditions.


As far as I concerned there is only one soil to use, Fafard 3B. It is the gold standard for greenhouse growing (not just reefer, most plants). It is also alot cheaper than fox farm, sunshine, promix, etc. It contains processed pine bark which makes for an incredibly soft and light mix.

My $.02