Cyco Coco & Clay is a blend of our superior RHP certified coco coir and RAL certified hydro clay balls mixed at a ratio of 60% coco coir and 40% hydro clay. Cyco Coco Coir proudly displays the RHP stamp of quality. The RHP Dutch standard of quality for horticultural substrates ensures a strictly monitored quality assurance that will give you constant proven results. Cyco Hydro Clay is certified as a growing media through the RAL ?Quality Assurance Association? therefore it is a substrate approved and used for plant cultivation. Can be used as a top dressing for plants to reduce evaporative losses, reduce algae, fungus gnats and unwanted weeds.