Gro-Tanks are often referred to as 'pure hydroponics' because virtually no growing medium is used and roots benefit from unrestricted access to oxygen. Nut Systems was founded in 1976 by John Molyneux, with the aim of making hydro systems for small and medium scale growers. Today, our team of horticulturists, plant geneticists and chemists continue his legacy at our dedicated facility in Lancashire, UK.