To provide a breeding apparatus for aquatic organisms, a rearing space and a purification space of a breeding apparatus are separated and established, and therefore, a base material for removing organic matters such as excrement and food leftovers is indispensable. This means poor purification efficiency, complicated the breeding method with water conversion. A breeding apparatus and method capable of exerting sufficient purification effect of organic matter are provided.A circulation path forming member (4) for circulating a suspension between a breeding tank (2) forming an aerobic environment, a convection tank (3) forming a water mass, a breeding tank (2) and a convection tank (3), and an aerobic environment The purifying method and breeding device using the interaction having an environment in which organic substances to be pulverized into and out can switch between anaerobic environment and aerobic environment.BACKGROUND OF THE INVENTION【課題】水生生物の飼育装置において、飼育装置の飼育空間と浄化空間を分離して確立しており、そのため排泄物や餌の食べ残し等の有機物を取り除く基材が必須であった。この手段では浄化効率が悪く、換水を有して飼育方法を複雑化してしまっていた。有機物の十分な浄化効果を発揮することのできる飼育装置及び方法を提供する。【解決手段】好気環境を形成する飼育槽2と水塊を形成する対流槽3と飼育槽2と対流槽3間において懸濁液を循環させる循環経路形成部材4とを備え、好気環境中の細片化する有機物が嫌気環境と好気環境を行き来できる環境を有し、その相互作用を用いた浄化方法及び飼育装置。【選択図】図1
