Elite 91 Roots Professional Plant Additive, 1 LiterElite 91 Roots is a professional plant additive with many different applications and benefits. Available Sizes 250 mL 500 mL 1 Liter 4 Liter 20 Liter Directions for use: Shake well before each use Add Elite 91 ROOTS with every feeding from seedling cloning growth stage up until the 5th or 6th week of the crops fruiting flowering cycle Soil, Coco, Hydroponics: Add 0. 5 ml 2 ml per gallon of nutrient solution Compost tea: Add 2 5 ml per gallon of