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 the 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.