Abstract: Disclosed is a tray system for use in hydroponic growing, the system including a framework with at least one shelf, a shelf liner sized and configured for placement on the at least one shelf of the framework, a hydroponic grow tray sized and configured for placement on the shelf liner, the grow tray including a first side, a second side and a grow medium portion between the first side and second side, the tray configured in place such that there is a downward slope from the first side to the second side, the tray further comprising: a water receiving surface at the first side of the tray, the water receiving surface positioned to receive water from a source of water mounted to the framework, and sloped such that water received is directed to the grow medium portion of the tray, and a tray drain at the second side of the tray configured to receive water from the grow portion.