Because osmanthus fish live in water, the physical changes are not easy to detect. When fish are seriously ill, they usually lose their appetite and cannot be treated by oral drugs. External drugs are often affected by external factors such as weather and water quality. In addition, some fish diseases, such as viral diseases (iridovirus), have not been effectively treated at present.

Moreover, the weather is getting worse and worse, the seedlings are getting worse and worse, the diseases are getting worse and worse, and the consumption of fish is getting higher and higher ... In short, fish is becoming more and more difficult to raise! Even a good teacher has nothing to do.

Therefore, in the process of Osmanthus fragrans cultivation, it is necessary to achieve "prevention first, early treatment, and prevention is more important than treatment" in order to prevent or reduce the losses caused by the death of Osmanthus fragrans.

First, choose the right species. The quality of fish species has a far-reaching impact on aquaculture. Don't lose at the starting line!

1. Choose osmanthus varieties with large patterns, uniform size, no disease and no deformity (lack of wings).

2. When buying sweet-scented osmanthus seeds, it is best not to have a number, but to weigh them, so that the fish will not be so damaged.

3. When buying fish, put it in the pond with a hose (or transport small-sized fish in a fish bucket), and don't put it in the pipe with a fish truck.

Second, early management.

1. Disinfect and adjust water before sowing, and use "oxygen source" to suppress insects and prevent stress when sowing.

Features of "oxygen source" products:

① This product is made of polymer oxygen, which has a strong oxygen-increasing effect, and can increase oxygen and resist stress.

② It can remove dirt on body surface, promote wound healing, and inhibit ciliates such as shield ciliates, melons and rotifers.

③ This product is a weak oxidant, which can replace general disinfectants for disinfection and improve water quality.

2. Attention should be paid to the detection of slim fish in the early stage of osmanthus fragrans, and early detection and early treatment, especially the wave bean worm. This step is very important.

3. Sudden changes in weather, such as "white rain" and typhoons, and sudden changes in water quality cause strong stress to fish and are prone to sudden red eye (bleeding). Therefore, after the rain (after insecticidal disinfection), we should pay attention to detoxification and anti-stress, and prevention is more important than cure.