Ok Im not so high now, I can contribute something useful
Yes hydro growers can encourage a beneficial micro herd, but it will never be as diverse and tailored as a true organic growing environment
From Winston M et al (2014)
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0099641
"Cannabinoid concentration and composition was significantly correlated to structure of endorhiza communities
Each plant in the second experiment was tested for a variety of cannabinoids, including delta-9-tetrahydrocannibinol. Cannabinoid data associated with the plants was used in Mantel tests to understand the potential biochemical associations with community composition or structure; with significant differences between strains (unweighted;
r-stat: 0.863,
p-value = 0.001). However, due to higher THC composition and concentration in plants from one of the soil types, THC variables were also significantly correlated to the soil edaphic variables, and as such any association between microbiota and THC is very hard to disassociate from soil physicochemical variables."
"Edaphic factors were strongly linked to structure of microbial communities in rhizosphere and endorhiza communities"
(edaphic means originating from the soil)
Case closed hydro boys.