A pre-pump filter system for a water circulation pump, said pre-pump filter system for use in a pond and comprising: a biological cleaning mechanism and an internal self-cleaning mechanism; the internal self-cleaning mechanism comprising: a pump intake pipe having a first port configured to connect the pump intake pipe to said circulation pump, said pump intake pipe providing a conduit for water out of the pond by suction of water; a water supply pipe having a second port configured to connect the water supply pipe to a water source, said water supply pipe providing a conduit for water into the pond; and at least one water supply pipe extension connected to the water supply pipe and having holes to disperse outflowing water; the pre-pump filter system further comprising: a frame; and a screen cage having an inside and outside surface, the screen cage further comprising a top filtering surface and a bottom filtering surface, the top and bottom filtering surfaces forming a repository to collect pond debris, wherein said frame supports the screen cage to elevate the screen cage above the bottom of the pond such that said top and bottom filtering surfaces are accessible to at least one aquatic creature to feed on the collected pond debris and thus fulfill the biological cleaning mechanism, wherein the water supply pipe and the at least one water supply pipe extension are located within the screen cage; wherein the filtering surfaces provide a protective barrier that prevents large debris from entering the circulation pump. a biological cleaning mechanism and an internal self-cleaning mechanism; the internal self-cleaning mechanism comprising: a pump intake pipe having a first port configured to connect the pump intake pipe to said circulation pump, said pump intake pipe providing a conduit for water out of the pond by suction of water; a water supply pipe having a second port configured to connect the water supply pipe to a water source, said water supply pipe providing a conduit for water into the pond; and at least one water supply pipe extension connected to the water supply pipe and having holes to disperse outflowing water; a pump intake pipe having a first port configured to connect the pump intake pipe to said circulation pump, said pump intake pipe providing a conduit for water out of the pond by suction of water; a water supply pipe having a second port configured to connect the water supply pipe to a water source, said water supply pipe providing a conduit for water into the pond; and at least one water supply pipe extension connected to the water supply pipe and having holes to disperse outflowing water; the pre-pump filter system further comprising: a frame; and a screen cage having an inside and outside surface, the screen cage further comprising a top filtering surface and a bottom filtering surface, the top and bottom filtering surfaces forming a repository to collect pond debris, wherein said frame supports the screen cage to elevate the screen cage above the bottom of the pond such that said top and bottom filtering surfaces are accessible to at least one aquatic creature to feed on the collected pond debris and thus fulfill the biological cleaning mechanism, wherein the water supply pipe and the a frame; and a screen cage having an inside and outside surface, the screen cage further comprising a top filtering surface and a bottom filtering surface, the top and bottom filtering surfaces forming a repository to collect pond debris, wherein said frame supports the screen cage to elevate the screen cage above the bottom of the pond such that said top and bottom filtering surfaces are accessible to at least one aquatic creature to feed on the collected pond debris and thus fulfill the biological cleaning mechanism, wherein the water supply pipe and the at least one water supply pipe extension are located within the screen cage; wherein the filtering surfaces provide a protective barrier that prevents large debris from entering the circulation pump.