An automated fish tank cleaning assembly automatically cleans a fish tank. The assembly includes an upper housing and a processor coupled to and positioned in the upper housing. Support arms are extend from the upper housing supporting the upper housing on a fish tank. Each of a plurality of rollers is coupled an associated one of the support arms. Each of the rollers is operationally coupled to the processor wherein the rollers move the upper housing relative to the fish tank. A lower housing is coupled to the upper housing by a connection conduit extending between the upper housing and the lower housing. A plurality of cleaning arms is coupled to and extends from the lower housing. Each of a plurality of brushes is coupled to a distal end of an associated one of the cleaning arms relative to the lower housing.
