Propagation trays are designed exclusively for microgreens, wheatgrass, germination and fodder and fodder systems. Seedlings trays can be used for both soil and hydroponics setups and perfectly. Our 10 x 20 inch propagation trays can be used by themselves or mated with a 50 cell seeding cell tray that fits perfectly. Take it one step further with our award-winning propagation domes. The combination of a propagation tray, seedling tray and propagation dome, you'll be able to elevate the humidity and provide the perfect environment for your plants to thrive.