There is provided a divider for a hydroponic tray assembly. The divider has aplanar top. Thedivider includes at least one longitudinally-extending channel which couplesto and extendsdownwards from the planar top. The channel is u-shaped in lateral cross-section. The channel isarcuate-shaped in longitudinal cross-section.There is also provided a hydroponic tray assembly. The assembly includes alower chamber, anupper chamber and a divider between the chambers. The divider has first andsecond apertures.The divider includes at least one concentrically positioned and radiallyspaced-apart set ofarcuate-shaped baffles.
