Abstract: A hydroponic growing system including a nutrient reservoir and a planting tray having a perimeter air channel for floating on a liquid in the reservoir. A continuous planting trough is included in the planting tray for growing multiple plants in an un-segmented arrangement which is defined by a series of laterally spaced support arms extending across and underneath an opening in a support plate for carrying plant growth materials. The planting tray floats in the reservoir so that a majority of the planting trough is disposed above the liquid in the reservoir to allow for lateral air root growth. A flexible flange is carrier around the perimeter of the planting tray engaging the reservoir to form a light barrier between the planting tray and the reservoir. An air line passes into the reservoir which is connected to an air pump for introducing air into the liquid in the reservoir.

Abstract: A hydroponic system with modules having a hollow interior, a bottom wall with drain holes, and an open top end. A module conduit in each module carried by the bottom wall for channeling fluid through the hollow interior. The bottom wall of each module adapted to engage a top end of an adjacent module for stacking the modules in an end-to-end arrangement to form a planting column. A conduit receiving slot formed in the bottom wall of each module to engage a top portion of a conduit from an adjacent lower module when the modules are stacked end-to-end to provide a continuous fluid passageway through the planting column. A platform vertically carrying the planting column atop a fluid reservoir. A supply line connecting the reservoir to the fluid passageway. A fluid distributor atop the column in fluid communication with the fluid passageway for distributing fluid into the planting column.