2. The ground cage, also known as the ground cage net and the ground cage king, is suitable for rivers, lakes, ponds, reservoirs, streams and shallow waters, and mainly catches small fish, lobsters, eels, loaches, crabs and other fish. To make a floor cage, prepare beverage bottles, plastic buckets, copper wires, bait, rope, hot melt glue gun, gravel, art knife and electric drill first. First, prepare two large beverage bottles and three large plastic buckets, cut the bottle mouth completely with a utility knife, and then unscrew the bottle cap. Drill a hole in the oversize bottle cap with an electric drill, put it outside the beverage bottle, and then cover the bottle cap. Glue the two lids together with hot melt adhesive, and then punch holes in the lid of the beverage bottle with an electric drill. When finished, screw the big plastic bucket cover back on the plastic bucket. Then, we use an electric drill to drill a hole under the plastic bucket and screw the second beverage bottle with the lid removed to the bottom of the plastic bucket. Cut off the other two large plastic barrels, then dig two openings on the side of the plastic barrels, and screw in the barrels of the two plastic barrels through threads. After the bottle and plastic bucket are assembled, the ground cage is basically formed. Drill two small holes on both sides, tie copper wires on them as handles, and then drill some small holes for water outlet at the bottom of the cage with a small drill. After the ground cage is made, put some gravel in it before use, increase the weight of the ground cage, make it sink to the bottom of the water, and then put bait in it. Finally, just sink the cage in the pond.