The invention discloses a fish tank structure, which comprises an upper cover and a tank body.The upper cover is placed on the upper end of the cylinder body, and the central part is provided with a clamping groove for placing a light emitting strip. The two sides of the clamping groove are respectively equipped with a water storage pipe and a first planting groove. The bottom of the first planting groove is provided with several holes to drip the water supply liquid, and the side is also provided with a water inlet area to allow the water supply liquid to flow into and fall on the lower cylinder body.The cylinder body is a transparent water container.A bottom plate with a gap is arranged at the lower edge.A second planting groove is arranged on the bottom plate.The inner side of the cylinder body is separated by an overflow area.A water level pipe is set in the overflow area.The bottom end of the water level pipe is connected to the bottom of the second planting groove.Connect the internal space of the cylinder body with the water level pipe；A drain pipe is arranged at the bottom of the overflow area.The water in the overflow area can be discharged from the drain pipe to the outside；A pipeline is arranged under the bottom plate to connect a delivery motor installed outside the cylinder.The conveying motor can drive gas into a guide pipe.The guide tube extends to the upper edge of the upper cover.Make the gas sent by the guide pipe and the water liquid be filled by the water storage pipe of the upper cover.本創作揭露一種魚缸構造，包含上蓋及缸本體所構成。該上蓋承置於缸本體上端，中央部份設有一卡槽，可供一發光條置入，卡槽的二側分別組裝蓄水管及設置第一植栽槽，該第一植栽槽底部設有若干孔洞可供水液滴落，旁側又設有入水區，可供水液流入並落於下方的缸本體者。該缸本體為一透明盛水容器，下端緣架設一具有間隙的底板，該底板上設有第二植栽槽，缸本體內部邊端隔設有一溢流區，溢流區內設一水位管，該水位管底端連通至第二植栽槽底部，使缸本體內部空間與水位管連通；該溢流區底部又設有一排水管，使溢流區內的水液可由排水管排放至外側；底板下方又設置管路連接一安裝於缸外的輸送馬達，該輸送馬達可將氣體打入一導引管，該導引管延伸至上蓋上端緣，令導引管所送出的氣體連同水液被上蓋的蓄水管所盛接。
