Prevents build-up in hydroponic systems The formulation of Pythoff Plus is a result of our extensive experience as water treatment consultants since 1966: Maximizes the effective working life of nutrient solutions. Helps prevent root browning, blocked drippers and build-up in hydroponic systems. Also used for maintaining stored water and for cleaning system hardware during post-harvest system clean-up. Pythoff PLUS is “standardize” to a specific concentration and has a shelf-stability of 10 yrs plus – other competing products however are highly unstable hence you never really know if the dose is correct! Having the correct dosage is critical – underdosing will provide nil benefit, and overdosing will harm root hairs. Safe to use from seed to harvest – very gentle on roots. Pythoff PLUS is fully compatible with all FloraMax additives. Available in 1L, 5L, 20L. Dosage: Nutrient solutions and stored water, 0.5ml/L (2ml/Gal) | Post-harvest system clean-up, 2ml/L (8ml/Gal). CAUTION: Not compatible with hydrogen peroxide, hypochlorous acid, beneficial bacteria or “live” systems.