Folks, I've been swinging back-n-forth on the subject of ACT's and their usefullness for an indoor grow. I'm sure this has been noted by many. This is purely a "personal issue" and in no way is my current thinking putting down the potential efficacy of an ACT. We're straight on that so don't hate on me. If one wants to brew an ACT and dump it on their container have fun with it. I sure have. Anyway, so, here's the Q. Decomposing strains of bacteria and most fungi only work on dead or dying organic matter (at least to my understanding). What is it about these decomposers that keep them from decomposing/digesting living plant roots? Is it an exudate from the roots that tell the bacteria "I am alive, don't eat!". We all know if you throw a rootball in the recylce bin just about every single trace of that root mass will be gone in ~7days. So, what is "IT" that is keeping them from decomposing a plant's roots when the plant still has a heartbeat? Is this just another one of the many miracles of nature that science has yet to solve?