A series of treatments are required prior to fish farming in new fish ponds to ensure a suitable environment for fish growth. Here are some key steps:
Pond Regulation and Equipment Configuration:
Make sure the bottom of the pond is flat, and a dam can be built to enhance its sturdiness and water retention.
There can be a moderate amount of silt at the bottom of the fish pond, but the thickness should not exceed 20 cm.
Make sure you have enough water and have drainage and irrigation systems in place.
Pond disinfection: About 10 days before stocking the fry, the pond needs to be exposed to the sun for a period of time.
A small amount of water is then poured and quicklime or bleaching powder is poured over the entire pool to kill pests and pathogens.
After disinfection, drain the water and refill it with new water after a few days.
Water Quality Regulation and Management:
Determine the pH value of the water in the fish pond, and if it is too high, measures can be taken such as acid-base neutralization with vinegar.
For newly built cement fish ponds, the fish ponds can be sprinkled and soaked with salt, potassium permanganate solution or quicklime water, then rinsed with tap water and exposed to the sun for several hours.
Establishing a nitrification system to stabilize water quality is key to fish farming.
Fry selection and stocking:
To ensure the health of the stocked fry, you can use potassium permanganate solution to disinfect the fry and soak it for 3-5 minutes, but it should be noted that the concentration should not be too high.
When the water temperature in the pond reaches 5 or more, the fry can be stocked.
According to the size of the pond and the size of the fry, a reasonable stocking density is determined.
Daily management: Regularly check the water quality of the fish pond, including pH value, ammonia nitrogen, nitrite and other indicators, and adjust it as needed.
Feed the fish with high-quality feed at regular intervals to meet their nutritional needs.
Pay attention to the activities and feeding of fish, and find and deal with abnormal situations in time.
The above are the basic treatment and management points before fish farming in the new fish pond, I hope it can help you. For more detailed information, it is advisable to consult a fish farming expert or consult relevant books.