Microbe Life Photosynthesis Plus has been formulated to enhance plant functions at the foliar level and the root zone. This product can be applied in both soil and soil-less substrates. You will increase your horticultural yield! This product works with the natural photosynthesis and biological functions and facilitate plants ability to capture and utilize radiant energy more efficiently. Microbe Life Photosynthesis Plus also speeds uptake and distribution of essential macro- and micro- nutrients required for all plant metabolic functions and growth. Use this product and see healthy plants! Quantity: 2.5 Gallon.Not for sale in CA, DE, HI, LA, NM, OK, OR, SD, WA and WI at this time.