Add beneficial bio-fertilizers to your grow and optimize conditions for explosive yields. Tarantula® delivers optimal ratios of hand-selected bacteria for enriching your garden’s root zone. Increases water and nutrient absorption for maximum yields 10,000,000 CFU per gram offers optimal conditions to ramp up nutrient transport Improves availability of much-needed iron and phosphorus Tarantula® is specially designed for use with diverse hydroponic growing media and all continuous liquid-feed growing systems such as aeroponics, drip irrigation and emitters, NFT, flood and drain, and deep water culture. ATTENTION: Tarantula® is completely compatible with all pH Perfect Base Nutrients as well as with all non pH Perfect Base Nutrients and supplements and all competitors Base Nutrients and supplements.