The invention relates to fish farming and is intended for the artificial cultivation of fish, such as trout. Proposed cage for fish ensures timely removal of the cage snuloy dead fish and that ensures the safety of the maximum possible number of fish reared in cages.Tank fish farming comprises a pontoon portion with a guard rail, with cargo netting chamber and lifting chamber netting system comprising a winch housed on fastened on the pontoon bridge, the winding rope connected to the netting camera.The technical result consists in that it provides a more convenient operation by simplifying the purification process of snuloy cage and dead fish and the ability to more fully utilize the fish contained in the cage, by processing snuloy fish.Unlike known that netting chamber is constructed of three interconnected parts: cylindrical, conical and additional netting, wherein the tapered portion is made of several, at least 4, of faces trapezoidal shape and has a height equal to or more than the height of the cylindrical of the chamber, to its lower portion secured additional netting part, which is a net, which is connected to the rope by means of flexible elements, at least 3, each fixed at one end to the ring, externally placed ce hydrochloric chamber at the juncture of the tapered portions and sachkoobraznoy chamber and the other end connected to the rope, the second end of which is passed through a block mounted on the boom hoist lifting system. Loads for deepening the cage are fixed to the two ropes made of different lengths, with one of them is fixedly connected with the load and an upper end fixed to the stanchions, a second rope connected to the load slidably cargo thereon, is mounted to the lower selection cylindrical part of the netting in place the vertical chamber pozhiliny connection footrope this part of the chamber and an upper end fixed to the free stanchions.Sachkoobraznaya part is formed with a diameter of at least 1 meter and a height of at least 0.8 meter
