General Hydroponics Liquid Koolbloom, 2.5 GallonLiquid KoolBloom should be used at the start of the reproductive cycle initiating larger, heavier fruits and flowers. Initiates profuse flowering by increasing flowering sites, limiting bud aborting, & builds bigger blooms! Liquid KoolBloom is a is a bulking agent that goes way beyond other bloom boosters. Enriched with stress reducing vitamins and nutrient transporting acids, it promotes heavy production of essential oils, fantastic flavors, and