Advanced Nutrients Tarantula® 1L subcategory ventilation Poseidonzyme helps release previously unavailable Poseidonzyme helps release previously unavailable nutrients and other substances in the soil for plants to use Ames proudly makes this tool in the USA and backs it with a lifetime warranty TARANTULA Put Beneficial Microbes To Work In Your Root Zone It's a known fact that beneficial microbes in your plants' root zone assist in the processes that give your plants the vital nutrients they need Tarantula is specially designed for use with all hydroponic growing media including coco coir as well as continuous liquid feed growing systems such as aeroponics drip irrigation and emitters NFT flood and drain and deep water culture