PRO-MIX MPX AGTIV REACH is a professional-grade substrate engineered for robust root development and reliable water-holding capacity. This well-balanced mix is made with high-quality sphagnum peat moss and a carefully calibrated amount of perlite — providing a moderate porosity that’s ideal for hand-watering and automated irrigation that requires finely-tuned moisture retention and drainage. It’s made with AGTIV REACH, a proprietary inoculant containing Rhizobium leguminosarum that forms a beneficial symbiosis with plant roots, delivering microbial technology that enhances nutrient uptake, supports natural nitrogen production, and promotes vigorous growth during veg — especially during early stage growth. For a similar blend with added mycorrhizae that boosts root mass and flowering potential, check out PRO-MIX MPX AGTIV AMPLIFY. Growers looking for a finer alternative with low porosity should explore PRO-MIX BKI AGTIV REACH.