1. Turn on the phone in the afternoon on a sunny day
Oxygenation of culture water mainly relies on photosynthesis. Afternoon is the time of day with the most sunlight and the most active photosynthesis of phytoplankton in the water. Since the deepest photosynthesis in the water body can only reach twice the transparent depth of the water body, when the dissolved oxygen in the water body on the surface of the fish pond reaches super saturation, the water body in the middle and bottom layers is still in a state of hypoxia. At this time, the impeller aerator must be used. The stirring and aeration functions bring the supersaturated dissolved oxygen water in the upper layer to the middle and bottom layers, and bring the hypoxic water in the middle and bottom layers to the upper layer for photosynthesis. At the same time, harmful gases such as ammonia, hydrogen sulfide, methane, carbon monoxide, etc. from the bottom of the pool are brought to the bottom. to the water surface, which improves the overall dissolved oxygen level of the fish pond water body and reduces harmful substances in the water body.
2. Start up in the early morning
The dissolved oxygen content in the water body in the pond is the lowest period of the day in the early morning. Especially in high-density fish ponds, the dissolved oxygen content in the water body is lower than 2 mg/L. Fish floating heads often occur during this period. Turning on the aerator during this period can form a relatively oxygen-rich area around the aerator to prevent floating heads and pond overturning accidents.
3. On rainy days
Since the water body in the fish pond has poor photosynthetic capacity, it mainly relies on the oxygenation of the aerator to maintain the dissolved oxygen in the water body of the fish pond. The start-up time should be increased. Farmers can control the start-up time according to the water body temperature. If the water body temperature is high, the start-up time should be increased. Increase boot time.
4. Plum rainy season
Floating heads and pond overturning are most likely to occur during the rainy season. Due to low air pressure, it is difficult for oxygen in the air to dissolve into the water body. At this time, the aeration efficiency of the aerator is also the lowest. It is best to turn it on 24 hours a day to prevent pond overturning due to lack of oxygen in the water body.
Post time: Jan-16-2024