Check the listing for details. General Hydroponics Liquid KoolBloom 2.5 Gallons. Condition: New. Listed at 129.59 USD. Liquid KoolBloomـ Forces abundant flowering ـ Boosts production of essential oils and fragrances ـ Increases size and weight of fruits and flowers ـ Precisely formulated to enhance the performance of all types of nutrients Liquid KoolBloom is a is a bulking agent that goes way beyond other bloom boosters. Enriched with stress reducing vitamins and nutrient transporting acids, Liquid KoolBloom promotes heavy production of essential oils, fantastic flavors, and increases fruiting and flower development.Liquid KoolBloom is instantly soluble in your reservoir and immediately available for plant uptake. Liquid KoolBloom is precisely formulated to enhance the performance of GH's Flora, Nova, and Maxi series nutrients.Liquid KoolBloom should be used at the start of the reproductive cycle initiating larger, heavier fruits and flowers. During the last two weeks, use Dry KoolBloom for an additional bloom boost and to facilitate ripening.