NOVELTY - The device has pipes submerged into a vessel (10) containing water, and air diffusers (4) secured inside the pipe by glue and pipe fittings. An air pump (1) generates sufficient cubic feet per minute of air for diffusers to infuse water with dissolved oxygen.    USE - Device for extracting and multiplying beneficial aerobic microbes found in compost and vermicompost to be applied to soil and plants in liquid form.    ADVANTAGE - Enables raising and maintaining the dissolved oxygen content of the body of water in a very efficient yet simple manner. The device has simple structure and can be dismantled and cleaned in less than 20 minutes. Most of the components are not glued and can be pulled apart. The device uses air pumps alone to actually circulate water and can be used with or without a mesh extractor.    DETAILED DESCRIPTION - The pipes are connected by pipe junctions and set at perpendicular angles on the vertical plane and various angles on the horizontal plane. The pipes have openings near the bottom of the body of water through which water is drawn by the action of water being pushed up in perpendicular pipes by the air diffusers. The air pump provides air and energy by air pipe or air tubing (2) connected to the diffusers. The water is dropped from sufficient height to break the surface tension of the water with sufficient force to actuate the release of carbon dioxide from water and to actuate the absorption of oxygen by water enhancing the action of gas exchange. Additional air diffusers submerged in the water proximal to the bottom further raise and maintain dissolved oxygen in the water. The air and energy coming from the air pump are regulated by control valves (3) connected to the air pipe or air tubing, providing sufficient air to the device and body of water to maintain dissolved oxygen at a level conducive to sustain and enhance aerobic microbial life. A mesh extractor container is attached to return pipe by down pipes connected to the return pipe. The down pipes carry returned water to actuate the agitation and oxygenation of compost placed into the mesh extractor container and actuate the oxygenation of the body of water. The beneficial microbes are broken loose from the compost by the agitation and discharged through the mesh extractor container into the body of water. An INDEPENDENT CLAIM is also included for method for extracting and multiplying beneficial aerobic microbes found in compost and vermicompost, which involves placing an amount of compost or vermicompost and solid microbial foods such as kelp meal into a mesh extractor container and filling a vessel with water. The device is started by turning on the air pump and liquid microbial food such as black strap molasses and fish hydrolysate are added to the body of water. The liquid applied to soil and plants is used at a prescribed period of time when the beneficial aerobic microbes are at an optimal level.    DESCRIPTION OF DRAWING(S) - The drawing shows the configuration of the device for extracting and multiplying beneficial aerobic microbes found in compost and vermicompost.    Air pump (1)    Air tubing (2)    Air control valve (3)    Diffuser (4)    Water intake openings (5)    Riser pipe (6)    Water vessel (10)