The present invention, a space of a certain size is formed inside, each outer surface is a protective frame 10 is formed with a plurality of entrance holes for young fish; A plurality of first protective devices 22 having a certain shape and a shape different from the first protective devices 22 and placed inside the protective frame 10 and placed in the space between the first growing devices 22 Provides a device for protecting and growing young fish, including 2 protective gear 26.
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