Fish growth season typically runs from June to September each year. During this period, water temperatures are ideal, bait is plentiful, and fish feed actively, making it the best time for their development. However, it's important to note that high temperatures can also make fish more prone to diseases.
**First, focus on proper feeding**
1. Adjust feeding based on weather, water quality, and fish behavior. On good days with clear water, you can feed more; on bad days, reduce or stop feeding. Ensure that concentrate feed is fully consumed within 30 minutes, while green feed should be finished on the same day.
2. Feeding times: Feed once in the morning between 9-10 AM and again in the afternoon between 2-3 PM.
3. Choose high-quality compound feeds from reliable manufacturers. Use fresh, non-toxic green fodder and shellfish that suit the fish’s taste.
4. Always feed in a fixed location to help fish develop a routine and improve digestion.
**Second, apply fertilizers wisely**
During July to September, chemical fertilizers are most effective. Apply them every 5-7 days. For example, use 1 kg of urea or 1.5 kg of ammonium sulfate per acre. Monitor water clarity—aim for around 25 cm transparency, ideally with a tea-brown color, to ensure optimal conditions.
**Third, manage water quality regularly**
1. Add fresh water every 7–10 days, about 15–20 cm each time. If water quality deteriorates, perform a partial water change.
2. Use an aerator during midday (2–3 PM) to increase oxygen levels.
3. Apply lime every 15 days at a rate of 15–20 kg per mu to maintain water balance and prevent disease.
**Fourth, prevent fish floating head (surface gasping)**
1. Inspect ponds three times daily—especially at dawn, noon, and dusk—to detect early signs of floating head.
2. Remove weeds and ensure proper bait distribution to avoid overcrowding.
3. Regularly add new water to keep the environment clean.
4. If floating head occurs, act immediately by using oxygenation methods. Delaying treatment can lead to serious losses.
**Fifth, implement comprehensive disease prevention**
June to September is not only the best time for fish growth but also the period when they are most vulnerable to illness. Diseases can spread quickly and cause significant damage. Therefore, proactive measures are essential.
1. Disinfect the pond before stocking by draining and filling it with 125–150 kg of disinfectant per meter of water depth.
2. Soak fingerlings in a 2%–3% salt solution before introducing them to the pond.
3. Regularly disinfect the water using quicklime at a rate of 10–20 kg per mu for 1-meter depth.
If you notice any signs of disease, consult professional technicians promptly. Accurate diagnosis and proper medication are crucial. Avoid self-treatment or ignoring symptoms, as this can lead to unnecessary losses. By following these practices, you can ensure healthy fish growth and maximize your harvest.
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