Humboldt Myco Madness Soluble -- 1 lbs Athena & Advanced Nutrients Black holds up better than

Black holds up better than white in direct sun and stays cleaner inside

The air filter box is compatible with 4” inline fans

Leak-proof washer: White plastic washer seals the tank fitting on every change

and rust and iron particles

Humboldt Myco Madness Soluble -- 1 lbs Athena & Advanced Nutrients Black holds up better thanMyco Madness contains a biologically active package, 8 mycorrhizal species, 12 beneficial bacteria and 2 Trichoderma species well suited to a variety of media, soil conditions, climates and plants. Myco Madness contains mycorrhizal fungi that colonize plant roots and extend the root system into the surrounding media, greatly enhancing the absorptive surface area of root systems. Myco Madness helps in forming an essential link between the plant roots,