I’m going to just put up a explanation of rhizobacteria. Tribus is plant growth promoting rhizobacteria. It may seem a little expensive when you first look at it, but goes a long way. Only 1 ml per gallon. I ordered mine from Amazon and paid $79 for half a liter. As far as Jack’s you can use it from seedling to harvest in the same strength start to finish if you’re in coco. I use it in FF soil mixture so basically don’t add nutrients until ppm’s drop down low enough to start it. Used it on last grow and was reasonably successful with it.
Rhizobacteria are root-associated bacteria that form symbiotic relationships with many plants. The name comes from the Greek rhiza, meaning root. Though parasitic varieties of rhizobacteria exist, the term usually refers to bacteria that form a relationship beneficial for both parties. They are an important group of microorganisms used in biofertilizer. Biofertilization accounts for about 65% of the nitrogen supply to crops worldwide. Rhizobacteria are often referred to as plant growth-promoting rhizobacteria, or PGPRs. The term PGPRs was first used by Joseph W. Kloepper in the late 1970s and has become commonly used in scientific literature. PGPRs have different relationships with different species of host plants. The two major classes of relationships are rhizospheric and endophytic. Rhizospheric relationships consist of the PGPRs that colonize the surface of the root, or superficial intercellular spaces of the host plant, often forming root nodules.