The pellets drain freely and do not hold any excessive water, which is why they provide good oxygen levels around the root and why they are particularly suitable for flood and drain systems. In drip irrigation systems the pellets can be mixed with a medium with better capillary action so the feed is dissipated broadly through to prevent salt build-up. Hydroton is a substitute for normal plant-soil and is mainly used in hydroculture / hydroponic systems as well as for decoration. Hydroton is available at most hydroponic supply stores and on the web. We at Patio-Gardener purchase direct from Everybody's Garden Center. Their prices and service are among the best around. |