HC has a full line of trays that work well with overhead and water mat irrigation while facilitating proper drainage. Visit us online to learn more! Q A How do fiber containers handle moisture and air flow? Our EcoGrow® line of fiber growing containers allows moisture to move freely throughout the walls of the container for optimal drainage and healthy root systems. Much like clay pots, our fiber growing containers ensure the entire plant can breathe - maintaining necessary oxygen levels while limiting root rot caused by over-watering. Additionally, our fiber growing containers allow the root system to experience what is known as air pruning. When roots are exposed to air (combined with the absence of high humidity levels) roots are essentially " burned off " , which safely and naturally causes the plant to continuously produce healthy, abundant roots for a much healthier plant. Visit hc-sustainable.com/organic-grower to learn more about how EcoGrow® growing containers can meet your needs. 800-225-7712 | Sign up for our monthly e-newsletter! hc-companies.com/newsletterhttp://www.hc-sustainable.com/organic-grower http://www.hc-companies.com/newsletter