GHE Subculture B & M

[YAgo]

Hello Guys,
It has been a long time since I post something in this forum. I was In a very bad shape with my Collection in Hydroculture, but thing were getting really well in the past few months.

I was wondering if any of you have ever tried Subculture B or Subculture M from GHE for your Orchids in S/H ? I just purchased a bag of each, they aren't cheap, to see if by improving good Bacterias in the Root System I can avoid any future Root Rot.

Have you hear about it or experience with it?
Thanks