To address daily dip net and tank cleaning activities around the tank each SeeBrite™ Overhead Hatchery Light is positioned from an adjustable marine aluminum grade hanger frame mounted outside the tank. This hanger’s unique design addresses a range of tank diameters and allows the operator to set placement of the fixture out over the tank surface. A simple hand adjuster knob sets the light fixture’s height over the water - from direct contact to 2 ft above the surface. This range of motion insures best possible lumens distribution while keeping site operators above and behind the light fixture to minimize fish stress. Releasing the adjuster knob and lifting the fixture and support arm from the pedestal removes the entire light fixture from the tank for cleaning, servicing or lamp replacement.