Tribus Original Bacterial Biostimulant - 17 OZ / 500 ML - Case of 12Tribus is a revolutionary microbial additive designed for growers looking to improve yields. This scalable microbial additive can be used by cultivators of any size, helping improve nutrient uptake, root development, enzyme production, and root zone health for improved yields at harvest time. Tribus is one of the most versatile additives available on the market to growers today. Growers can feel confident using Tribus thanks to its extensive testing