Is Great White Mycorrhizae powder comparable to Fox Farm Microbe Brew?

Mycorrizhae is one beneficial microbe. The brew contains multiple types of microbes.

I've noticed benefits to using white shark, though I'll likely switch to a cheaper version at some point. I can't compare the two since I've only used white shark, though I can only pass on my observations.

I just transplanted about a dozen seedlings and a single clone that were treated with whiteshark spores (seedlings had already been in two different potters, but are under a month old). The root systems were surprisingly bulky compared to the plants themselves, they haven't been given any nutrients just pure promix and white shark(also haven't been 'feeding' the shark with any sugars). This could all be conjecture on my part though.

Roots before shoots - the principle behind root-enhancing beneficial microbes.

you could use both but you might waste some money. imo myco's are myco's, use some, any brand will get it done. most of 'this is better than that' crap is marketing and opinion. better yet try each on there own plant, one not treated as a control and two more, one with each. best way to know whats the best for you. think about feeding those baterial tho, most people use some kind of carb like molasses.

ya but does it cotain this much

Ten plant-growth promoting rhizobacteria have been added to make this inoculant truly beneficial. ROOT BLOOM CONTAINS:
Endomycorrhizae -
Glomus intraradices (55 prop/gm) Glomus mosseae (55 prop/gm) Glomus aggregatum (55 prop/gm) Glomus etunicatum (55 prop/gm)
Glomus clarum (5.5 prop/gm) Glomus monosporum (5.5 prop/gm) Glomus brazilianum (5.5 prop/gm) Glomus deserticola (5.5 prop/gm) Gigaspora margarita (6.5 prop/gm)
Bacteria -
-Bacillus pumilis - 2,300,000 CFU/gm -Bacillus coagulans - 2,300,000 CFU/gm -Bacillus megaterium - 2,300,000 CFU/gm -Bacillus licheniformis - 2,300,000 CFU/gm -Bacillus azotoformans - 2,300,000 CFU/gm -Bacillus thuringiensis - 2,500,000 CFU/gm -Paenibacillus polymyxa - 2,300,000 CFU/gm -Paenibacillus durum - 2,300,000 CFU/gm -Azotobacter chroococcum - 2,500,000 CFU/gm -Pseudomonas aureofaceans - 2,200,000 CFU/gm
Yeast -
-Sacchromyces cervisiae - 2,200,000 CFU/gm

this ingredient list is not for either of those popular myco additives in the title, and great white has trichoderma in it that

"trichoderma is an omni-present organism in most soils naturally. And where it has been shown to do many beneficial things in relationship to plants, it has also been shown to eat indiscriminately pathogenic and beneficial fungi alike. So why would anyone choose to inoculate mycorrhizae at the same time as Trichoderma? Its like releasing bunnies and bloodhounds at the same time... not a spectacle I care to imagine. If you have a soil borne fungal pathogen, by all means let loose the hounds, otherwise, keep them on a leash."

Good shit right here:

"To Trichoderma or Not To Trichoderma?
We have consciously chosen to omit Trichoderma harzianum from our formula. Although this organism has been shown to have beneficial uses, there are studies that bring into question its relationship with mycorrhizae. Some studies indicate that it may adversely affect the colonization rate of mycorrhizae on the plant's roots. For this reason, we thought it unwise to add Trichoderma to our formula. If our goal is to inoculate mycorrhizae, why would we want an organism in there that stands in the way of this goal?

http://www.beneficialbiologics.com/index.php?option=com_content&view=article&id=7&Itemid=8

I also run their "Sea Green". If you're not familiar with this product check it out. It's a must have in your nute lineup in my opinion.

http://www.beneficialbiologics.com/index.php?option=com_content&view=article&id=5&Itemid=6

I noticed that is had Trichoderma on there. It popped right out because that was the arch nemesis of psilocybin mushroom growers. Wasn't sure what it's purpose was... maybe to eat harmful fungi?

there are so many kinds of Trichoderma it would be almost impossible to name them all, unless you were really into mycology or somethin . there are however good forms of it as well as 'bad'. im sure if you searched enough you find a few kinds that are suppose to help with root disease and foliar diseases. ive always skipped it if i could though, cant let the two hobbies collide, and before i was all about boomers!

alot of generic myco products also have ecto's in them, which are more gene specific to certain plants, tons of those kind too. we use the endo's mostly for what we do and maybe the lesser known ericoid myco if you happen to compost. the rhizosphere is a busy place!