Every product has parameters to define. So as the fish cage.
You might be overwhelmed when you read about fish cage drawing for the first time.
Don’t you worry. In this blog, we are going to review the critical parameters most used. By reading through, you will soon catch the main points of fish cages.
1. Cage shape
There are rectangular, square, circular, octagonal, and so on. At present, many people use circular types. It follows by squares because they are simple and convenient.
2. Cage size
The smallest cage is about 1 square meter. Usually, the small cage is up to 15 square meters. The cage with 15~60 square meters is medium size. The large net cage is 60~100 square meters. Now the largest one can reach 500~600 square meters.
3. Cage height
The height of the cage is determined by the water depth and the plankton distribution. At present, it is commonly 1.5 to 2.5 meters high. If the water is deep, the cage can also be with 2~4 meters high. The distance between the bottom of the net and the bottom of the lake should be at least 0.5 meters.
4. Mesh size
The cage mesh should be determined by the culture stockings. Usually, 1.1-centimeter-mesh is preferred for 4-centimeter-fish. 2.5 to 3 centimeter-mesh is for 11~13-centimetre-fish. 3~5-centimeter-mesh is for mature fish. It is best to change the mesh as the fingerlings grow. The cage should cover or add extra facilities to prevent fishes from escaping. This is even more important for crabs and Monopterus albus.