1. Turn off the water. The water source is good. After being introduced into the pond, there are no more bacteria, germs and harmful microalgae in the pond water. Good water source is not only beneficial to the success of the whole culture, but also can reduce the fishy smell of tilapia mud. At the same time, when the pond water is over-fertilized and aged, and the algae and bacteria are out of balance, there is also a cleaner and safer water source for changing water.

2. Choose seashore beaches or estuaries for aquaculture. The water bodies in coastal beaches or estuaries have a certain salinity, and most cyanobacteria and bacteria secreting soil odor are not easy to grow and survive in this environment. This is the main reason why tilapia grown in seawater or brackish fresh water has no muddy smell, tender meat and good taste.

3. Use cement pond instead of mud pond. Generally, the mud in the soil pool is thick, which is easy to breed harmful microorganisms such as bacteria and low dissolved oxygen. At present, many tilapia are farmed in fat water, but the dissolved oxygen in the water is low, the energy and material circulation in the pond is not smooth, and the pond water is easy to deteriorate and stink. Bacteria, cyanobacteria, etc. It is easier to grow, resulting in a strong fishy smell in water and even fish.