How Do Red Crucian Carp Reproduce? Detailed Explanation of Breeding Methods and Key Technical Points

Red crucian carp, also known as grass goldfish, is a common ornamental fish in daily life, similar to koi, and very popular among people. So how do red crucian carp reproduce?

1. How do red crucian carp reproduce?

From March to August, red crucian carp will spawn in weed-filled lakes after rain, and can spawn 2-4 times a year. However, due to differences in growing regions, the spawning time will vary slightly. For example, in spring, they only begin to become sexually active and spawn when the water temperature rises above 15 degrees, and spawning decreases when the water temperature rises to 26 degrees, generally spawning once every 10 days.

2. How are red crucian carp kept?

1. Density: The stocking density of grass goldfish should be low rather than high. Normally, adult fish longer than 8 cm should not be kept in small glass tanks, but need to be kept in large glass tanks or ceramic tanks, equipped with a small oxygenator to prevent oxygen deficiency.

2. Feeding: Feed grass goldfish nutritious animal-based feed (water fleas, earthworms) and white sesame seeds, etc. Do not feed inferior grass goldfish feed bought from stores. Feeding is generally done once each in the morning and afternoon every day, and should not be excessive, with feeding stopping once the food is finished.

3. Light: When keeping grass goldfish, it is best to place the fish tank in a place with 1-2 hours of sunlight, so that the ultraviolet rays of the sunlight can be used to sterilize and help prevent disease. At the same time, due to photosynthesis, the fish body color will also be more vivid and beautiful.

4. Water changes: Frequently changing the water for grass goldfish can increase the dissolved oxygen in the water. When changing water, only one-third to one-quarter can be replaced. Replacing a lot at once will make the fish uncomfortable. There is no fixed rule on when to change the water; it depends on the water quality. Change more water when the water is turbid.