Problem to be solved: to provide an eel facility capable of dramatically improving aquaculture yield from the eel eel to the adult eel.A rectangular rearing basin 13 for flowing water from one end to the other end side opposed to it141516 andFiltered water from the breeding pond is filteredPump 31 to supply 12A drain passage 17 provided with 32 andFilter deviceAn oxygen bubble supply device 4 for supplying oxygen bubbles to purified water purified inThe breeding pond for breeding water supplied with oxygen bubble1415A feeding water supply pipe 41 to be supplied to the one end side of 16 is provided.Diagram