Counter-flow type glyptosternon maculatum hatching and early-stage fry breeding device

The utility model discloses a reverse-flow type glyptosternon maculatum hatching and early-stage fry breeding device which comprises an acrylic water tank, a water spraying cavity is formed in the bottom of the acrylic water tank, a top opening is formed in the top of the acrylic water tank, the water spraying cavity is communicated with a pressurizing water inlet pipe, and a top plate of the water spraying cavity is a perforated plate arranged in the acrylic water tank; a forty-mesh inclined screen plate is positioned and mounted in the middle of the acrylic water tank, an overflow water pipe is mounted in the acrylic water tank, and a pipe orifice of the overflow water pipe hermetically extends out of the acrylic water tank; and a plurality of water spraying holes facing the forty-mesh inclined screen plate are formed in the porous plate. Pressurized water is sprayed from the porous plate to the forty-mesh inclined net plate on which the glyptosternon maculatum fertilized eggs are placed, so that micro-flow