What should you pay attention to when raising fish at home?

Things to pay attention to when raising fish at home: water temperature and quality issues, environmental factors, biological factors, problems with the fish themselves, and man-made problems.

1. Water temperature and quality issues. Generally, there is no problem if the water temperature is constant. The fish has a self-cleaning function. As long as it is not particularly mixed, it is not a big problem. Generally, it is enough to change the water every three months. In the case of light and heat, ordinary fish do not need it.

2. Environmental factors, the most basic one is water. Sometimes the temperature drops due to sudden changes in weather, and the water temperature suddenly drops, which can easily cause fish to be intolerable. At the same time, there is also water quality, which means everyone must remember to change the water in time.

3. Biological factors. Generally, fish are attached by various bacteria or algae when they are bought. Some biological factors that are harmful to fish can easily lead to the death of fish.

4. The problem of the fish itself is like age problem. Just like people, the resistance of fish will decrease when they reach a certain age, making them more susceptible to illness. This requires friends to take more care of the fish.

5. Man-made causes, such as a power outage in the fish tank causing the fish to become hypoxic, or accidentally injuring the fish during water changes and causing bacterial invasion. These are often encountered situations.

Restocking fish of the same age and size with different habitats and feeding habits in the same water body is the characteristic and core of China's pond fish farming technology. Fish in polyculture should be related in habits and have similar requirements for water quality and water temperature (during the growing season). Ideal fish for polyculture include silver carp, bighead carp (upper-level fish), grass carp, bream (middle-level fish), carp, crucian carp, dace, herring (bottom fish), etc.

Polyculture of fish inhabiting different water layers can make three-dimensional use of water space. Compared with monoculture, the density of stocking fish can be greatly increased. The feces of grass carp and herring are not only fertilizers for cultivating plankton, but also provide a large amount of organic debris and breeding bacterial populations for silver carp and bighead carp to filter feed; carp, dace and crucian carp can remove residual bait and improve water quality.

It not only has the benefit of making full use of water bodies and increasing production, but also has the effect of reusing bait and improving water quality. Mixing fish of the same species with different ages and sizes also provides conditions for catching in batches and balanced marketing in one production season, while cultivating large-size fish species for the next year.

Polycultured fish should be classified into primary and secondary fish. The primary fish is the main target of feeding and feeding management. Matching fish plays a role in making full use of water bodies and reusing bait. There are mainly four types of polyculture in Chinese pond fish farming.

Reference: Baidu Encyclopedia-Pond Fish Farming