I'm still waiting for an e-mail from Fox Farms regarding the subject. The Tiger Bloom says it contains the micro's and all, but it's the Big Bloom that od's my plants if not used at half-strength. Big difference in performance without it, tho.

I don't believe it even mentions micro's on the Grow Big bottle, which made me wonder if it was in the Big Bloom, too.

The reason I believed that the Big Bloom had the micros, was, it is given throughout the veg and the flower stages. The more I think about it, the more I realize that there may be the micro's in both, Grow Big, and the Tiger Blood. But I don't pretend to understand the chemistry. I do know how to make Fox Farms work for me, tho, lol.

At the bottom of the nute schedule, it says
"Use Big Bloom in conjunction with other FF nutrients to relieve plant stress, unlock unwanted salt bonds, and allow for complete nutriotional flow." So perhaps it's just a 'plant laxative'.
Rusty Trichome Reviewed by Rusty Trichome on . Yellowing leaves. This starts to happen after about two weeks in flowering, see pic. I started using only RO water (thinking nutrient lockout) and minimum dosage of Tiger Bloom (2tsp/gal). The leave on the left is from 2 wk flowering and the other is from an older almost done plant. I still get decent buds, but something isn't right. Can anybody identify problem by looking at leaves. The room is not hot 75-85, and i only use dilute nutrients. Peters 20-20-20 during veg (about 1/4tsp/gal). Thanks Rating: 5