1. Fish and insects. Fish bugs are plankton living in sewage pits and ponds, and are the common names for various water fleas. Among them, fish bugs vary in size, such as red spider mites, which are smaller in size, but they are rich in nutrients, and they also have the effect of purifying water quality. Therefore, we can generally choose to use fresh red spider mites to feed red crucian carp. The red crucian carp fed in this way will develop faster and have brighter colors than the red crucian carp fed with other feeds, and the incidence of fish diseases will also be lower. reduce.

2. Sword algae. Sword algae, it belongs to the copepods among the crustaceans. Its advantages are that it has strong vitality, can move quickly, and can be stored for several days without dying. However, its disadvantage is that it is relatively small. If it is used as feed, because they swim faster, it is more difficult for fish to prey. Therefore, before feeding water fleas, it is usually necessary to scald them with boiling water.

3. Water earthworms. There are many types of water earthworms. Water earthworms are the favorite food of red crucian carp, and they are also rich in protein, fat and vitamins. They usually live in dirty running water, with one end of their body deep into the dirt and the other end swinging in the water. Their individuals are generally smaller, softer and have bright red bodies. They are easy to be swallowed by crucian carp, but they must be rinsed repeatedly before feeding, because they must be washed clean before feeding.

4. Plant feed. Of course, animal feed is the most ideal feed for red crucian carp, but sometimes there are other reasons and when animal feed cannot be found, plant feed can also be an option. Common plant-based feeds include turnip and aquatic plants, among which turnip is the smallest among animals and plants. And plant feed must be cleaned before feeding, and checked for pests or eggs. Best of all, use a low concentration of potassium permanganate for soaking before feeding.

5. Synthetic feed. Sometimes, in order to develop the fish industry, natural feed alone cannot meet the requirements, so at this time, synthetic feed is produced to supply market operations. Of course, it is much more convenient to raise crucian carp at home with synthetic feed. Moreover, the nutritional content of synthetic feed is relatively complete, which is more in line with the growth and development needs of crucian carp. Its main ingredients include protein, sugar, fat, inorganic salts and vitamins. The absorption of synthetic feed by crucian carp also contributes to its own development and growth.