Temperature changes lead to changes in water quality how to do a good job in fish pond management in May

Fish ponds

In May, when the temperature rises, the feeding and growth of fish increases, but the climate is changeable, the water quality is changeable, and the outbreak of diseases is prevalent, which is the month that fish culture in fish ponds should pay special attention to. Among them, we should pay attention to the following points:

First, we should pay attention to fertilization and baiting. For ponds dominated by fat-water fish, topdressing should be applied in time according to water color and transparency. Ponds that mainly eat fish should be fed in time.

Second, we should pay attention to increasing oxygen and changing water. In May, the food intake of fish increases, the excretion increases, and the water quality is easy to deteriorate and lack oxygen. Therefore, the aerator should be used to increase oxygen in time according to the weather and water quality every day. Especially showers and muggy weather. At the same time, it is necessary to add new water, raise the water level and replace part of the bottom water. Apply beneficial microbial preparations (photosynthetic bacteria, EM bacteria, etc.) every 15 days, sprinkle evenly throughout the pond, decompose the organic matter in the pool, reduce harmful substances, inhibit the reproduction of bacteria, and maintain good water quality.

Third, we should pay attention to disease prevention. As the water temperature is suitable at this time, a variety of bacteria breed and breed, fish are very prone to disease, and proper prevention can effectively reduce economic losses. At this time, the types of diseases that are easy to break out are water mildew, skin rot, Gill rot, enteritis, hemorrhagic disease, melon disease, rotifer and so on. The key to do a good job is to prevent bacterial and parasitic diseases. The method is to regularly use quicklime, chlorine dioxide, dibromohydantoin or microbial preparations to disinfect and improve water quality.