Collection: Additives

Additives sit alongside your base feed, each targeting one job: beneficial microbes for roots (Plant Success Great White), enzymes for dead root matter (Canna Cannazym), silicon for stronger cell walls (Shogun Silicon), or bloom boosters for bud size (Advanced Nutrients Big Bud, Bud Candy, Overdrive, Mills Vitalize). Check your base nutrient's feed chart before combining several — overlapping additives push EC higher than intended.