Fish pond conditions:

A circle of shallow ditches 30 to 40 centimeters deep should be dug around the pond to facilitate the catching of Mandarin fish.

The pond for culture requires a sandy bottom with little silt (about 15 centimeters), an area of 3 to 8 acres, a water depth of more than 1.5 meters, easy drainage and irrigation, good water quality, no sewage inflow, and a small amount of submerged water plants.

Fry stocking and cultivation:

1, the day before the fry into the day, add 10 centimeters of water (such as water quality can be replaced by 1/3).

2, fish fry stocking density of about 4000 / mu.

3. Check the density of forage fish in the pool and replenish palatable forage fish in time.

4, pay attention to water quality changes and weather conditions, poor water quality and timely water changes.

5. Disease control: mainly ciliates such as oblique tube worm, rotifers, etc. The incidence of fingerlings is low. Prevention and control methods see adult fish culture.

6. Feed feeding technology: put supplemental feed fish regularly (3-5 days for 1 period).

Expanded Information

Water Quality Management:

1. The water quality of the fish pond must be maintained all year round, "fat, live, cool" standard, the transparency of the pond water to maintain about 30 centimeters. To often add new water, especially in the high-temperature stage from June to September, every 5 to 7 days to add water, each time adding 15 to 20 centimeters of water.

2. Weather anomalies should be added immediately, and keep the water level of the pond relatively stable, to provide good environmental conditions for the growth of Mandarin fish. If the pond water is turbid, use alum 1 kilogram per mu or quicklime 5-7.5 kilograms of water and then splash the whole pond.

3. Installation of oxygenator to prevent floating head of Mandarin fish due to lack of oxygen. Generally, the oxygenator will be turned on at noon when the weather is sunny or less cloudy, and it will be turned on at midnight to early morning if the weather is hot and stuffy.

4. Prepare some hydrogen peroxide (content of 30% or more) or oxygenating spirit, which can be used to rescue Mandarin fish when they float their heads. The usage of hydrogen peroxide: 250 ml of hydrogen peroxide per mu, add 500 ml of water and add another 3 to 5 ml of 2% ferrous sulfate.

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