2. pry open the cuneiform bone and accessory cuneiform bone of the eye socket, then turn it over to separate the other side, and then chisel or mash the frontal bone, skull and occipital bone from the eye socket with a screwdriver to cut off the eyeball and the muscles connected with the shell. For fish with large scales, use pointed pliers to tear off a row of scales in the middle of the fish's belly in order, and then wrap them with small gauze to prevent the scales from being broken, until the fish skin is peeled off.
3. Soak the cleaned fish skin in more than 75% alcohol (mainly with strong disinfection and antiseptic effect on bacteria) for degreasing and preservation.
4. Apply antiseptic (nitro varnish) to the surface of the fish skin and put it into the central bracket, then insert sharpened lead wire or steel needle into the fins of the upper and lower caudal fins respectively, put on the bracket, sew it from the lower caudal fin to the lower jaw, and cross it from the inside of the skin to the outside. When stitched to the pectoral fin, it is easy to fill, and a 2~ 3 cm incision can be left for filling.
For the treatment of fins, according to the shape of fins in each part, cut the fins into 1 pair with cardboard, pull the fins away from both sides with paper clips or wooden clips, and cover the scales that have fallen off with glue, which can be removed after about 1 week.
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