Abstract: Fish tank spray devices of embodiments of the disclosed technology include a length of horizontal pipe with multiple portals arranged in a row which extend into the length of horizontal pipe. Water is sprayed from these portals in embodiments of the disclosed technology. The other side of the pipe is connected to various lengths of pipe which bring the water to the spray bar including a 270 degree bent length of a pipe followed by a 180 degree bent length of pipe having an interior in fluid and direct connection with the length of horizontal pipe. These turns can be adjusted in a transverse direction by rotating connection points within the pipes in two different planes which are perpendicular to each other allowing the spray bar to be oriented parallel and abutting against a length of an inside of the fish tank wall.