Gold Label Special Mix Custom 50L Our 60/40 Coco/Clay Pebble mix is custom produced by Gold Label in the Netherlands specifically for the needs of our hydroponic customers. Try a hybrid medium today and see the benefits of this 60/40 mix! Gold Label have been producing quality substrates for over 20 years and have a long history of innovation and quality. This Gold Label Special Mix Custom substrate is a 60/40 blend of Coco and Clay Pebbles this mixture provides a number of benefits over using each medium as a standalone method of growing. Gold Label coco is manufactured using coconut husk fibres these fibres are washed and buffered to lower EC and remove potassium and then sieved into fine fibres. The coco in this Gold Label Special Mix is extremely low in EC and extremely absorbent. The clay pebbles are fantastic for aeration (getting oxygen to the roots of your plants) so when combined in this special mix you get the EC stability and water retention of coco with the aeration properties of clay pebbles. This Gold Label Special Mix Custom is perfect for use in IWS Dripper and Flood and Drain Systems! All Gold Label substrates are RHP certified and Gold Label are the only substrate manufacturer with a KIWA certification. Gold Label manufacture effective and high quality substrates if you’re looking for a medium you can trust look no further!