This creation system provides stable breeding device in a kind of water,It include: plural ontology,The opening for being equipped with an accommodating space in each ontology and being connected to the accommodating space,The lateral wall of the ontology is equipped with a connection piece； And a bottle body,The bottle body is set in the what accommodating space by the opening； Wherein,It is combined by the connector of one of them ontology with the interconnection of the connector of another ontology,A plurality of ontologies are surrounded by a stable breeding region； This creation system can utilize using the PET bottle that will be discarded in conjunction with a cabinet,And the feeding region that formed a circle.本創作係提供一種水中圈養裝置，包括:複數本體，各個該本體內設有一容置空間和連通該容置空間之開口，該本體之外側壁設有一連接件；以及一瓶體，該瓶體係由該開口設於該容置空間內；其中，藉由其中之一個該本體之該連接件與另一個該本體之該連接件互相連接結合，將複數個該本體圍成有一圈養區域；本創作係可利用利用將廢棄的寶特瓶與一箱體做結合，並將其圍成一圈養區域。
