Microbes play a pivotal role in all aspects plant health and at all stages of plant life. When used in conjunction with your existing nutrient regime, URB Natural floods your root zone with beneficial microbial life. Expect to see a larger and healthier root mass than you’ve ever seen before, along with an improved resistance to disease and larger blooms come harvest time. This tried and tested formula contains no GMO’s or PGR’s to promote increased plant vitality and has taken the indoor growing world by storm, being used in over 40 countries and 80 university worldwide, improving all aspects of plant growth for growers the world over. We strongly recommend using Ecothrive Neutralise with this product to avoid the chlorine/chloramine in tap water from inhibiting, or even killing, the beneficial microbes.