FIELD: physics.SUBSTANCE: installation (10) includes one or several mesh cages for breeding (12) with the first water reservoir (A) submerged and floating in pool (20). Mesh cages (12) are equipped with waterproof walls. Pool (20) with second water reservoir (B) is separated from outer third water reservoir (C), but has communication for fluid flow, as well as pipelines (30), which pass between pool (20) and third water reservoir (C) and are intended for pumping water into pool (20) and from it. Water reservoir (C) is marine or oceanic, and the plant is located such that water surface (50) in basin (20) and water surface (40) in the reservoir (C) are approximately at the same level and the water change between the reservoirs (B) and (C) is completely or partially performed Tidal difference for tank (C). Method provides for installation of one or more mesh cages for breeding (12) with first water reservoir (A) on water surface in second water reservoir (B) in basin (20). Water supply to pool (20) from the third water reservoir (C) is performed through pipeline (30)； water outflow from mesh cage (12) into third water reservoir (C) takes place through pipeline (19a) and water surface (50) in basin (20) is installed at the same level as water surface (40) in third water reservoir (C), wherein third water reservoir (C) is marine or oceanic. Change of water between second water reservoir (B) and third water reservoir (C) is performed completely or partially due to tidal difference for third water reservoir (C).EFFECT: invention ensures water circulation in the cage with minimum expenses.22 cl, 6 dwgУстановка (10) включает один или несколько сетчатых садков для разведения (12) с первым водным резервуаром (А), погружаемых и плавающих в бассейне (20). Сетчатые садки (12) оснащены водонепроницаемыми стенками. Бассейн (20) со вторым водным резервуаром (В) отделен от наружного третьего водного резервуара (С), но имеет сообщение для перетока жидкости, а также трубопроводы (30),
