I've always had good experience with Advanced Nutrients. Can't say I've tried the other stuff your asking about.

I think youd be happy with Piranha and Tarantula. Maybe Voodoo Juice too.
iamgrowerman Reviewed by iamgrowerman on . Beneficial Microbes: Companion, Bio-Link Plus, Piranha, Tarantula - what's best? So I'm trying to measure the merits of stuff like Piranha, Tarantula, Companion, Bio-Link Plus, and stuff like that. I've been growing for awhile, dirt-farming with FF's Happy Frog soil and their nutrients. After this current grow is done I'm going to give hydroponics a shot. The nice thing with Happy Frog is it has those benefical microbes in it. Unfortunately, FF doesn't make anything for hydro that has beneficials in it, so I've got to find other products. I mainly post on a forum I Rating: 5