SLF-100 is a commercially proven enzymatic formula with over 18 years of proven success. It is a 100% organic and OMRI listed formula specifically designed to break out salts. Used as a cleanser for hydroponic systems and soilless media, SLF-100 goes to work immediately to keep your system running smooth and free of toxic buildup. SLF-100 is effective in all phases of the growing cycle and is compatible with all nutrients, fertilizers, and rooting compounds. SLF-100 is also compatible with H2O2. Thanks to a proprietary blend of naturally occurring enzymes, SLF-100 is PH neutral in concentrated form and has no added sugars or NPK.