I've been looking for a more affordable way to incorporate Mycorrhizae into my feeding schedule, because the ones the hydroponic stores sell are outrageously priced like (Great White) and one that i have used personally (Myco Madness).. I do believe that these Fungi are beneficial to the cannabis plant, based upon my personal experiences with the (Myco Madness) product i have used. Plus i've heard really good things from others who have used (Great White) and also other brands of Mycorrhizae, not specific to hydroponic retailers. I've never heard of anything bad any one had to say about any Mycorrhizae at all. the only remotely close thing i have heard to a complaint is that you can kill the living bacteria in your tap water. which is pretty easily avoidable. I stumbled across a couple free samples the other day (@ the hydro store actually) of a product called (Mycos Drops) and i haven't gotten a chance to use them yet. the guy at the store said he'd have some in soon. i have yet to see it hit the shelf either. but i dug up some site info on the product and a retailer that will ship it to me rather cheap compared to what else i've seen. check this out! http://xtreme-gardening.com/mykos/what-is-mykos/ http://xtreme-gardening.com/mykos/mykos-pure-fresh-alive/ A 1 LB bag is listed at $14.99 USD on the manufacturers webstore. i found it listed at $9.99 on another site... i wonder what the Hydro store is going to charge for this LOL. i feel totally ripped off @ about $30 for 4oz of Myco Madness anyway, i was wondering if anyone else has had any experience with the Mycos product or any of the Xtreme Gardening products, with Cannabis of course . and if you have, would you care to share a bit about it? Any comments on how another Mycorrhizae product worked for you, or suggestions about the topic are welcomed as well! thanks!