How to Keep Golden Crucian Carp? Detailed Guide to Breeding Methods and Techniques
The golden crucian carp is similar in shape to the common crucian carp. Its main features are a slender, streamlined body, small eyes, a single tail fin, and fast swimming, yet it is not afraid of people. So how do you keep golden crucian carp?
1. Feeding
They are fed nutritious animal-based feed and white sesame seeds, etc. Animal-based feed includes water fleas, earthworms, yellow mealworms, green worms, leather worms, and so on. What they are mainly fed is earthworms and white sesame seeds. Both red and black earthworms can be fed. Do not feed them the poor-quality goldfish feed bought from stores. This is because such feed contains too much starch, has poor nutrition, is not easy to digest, and easily pollutes the water quality; after eating it, goldfish suffer from poor nutrition, grow relatively slowly, and are also prone to illness. Goldfish will not overeat themselves to death as long as what they eat is easy to digest. When to feed: generally once in the morning and once in the afternoon each day, and they should not be overfed; feed only until they finish eating. Otherwise it will pollute the water quality.
2. Light
It is best to place the fish tank in a spot that receives 1-2 hours of sunlight. In this way, the ultraviolet rays of the sunlight are used to sterilize. This plays a role in disease prevention. This can reduce illness. Try to achieve prevention of fish diseases as the main approach, with medication as a supplement. At the same time, due to photosynthesis, the fish body's color is also relatively bright and beautiful.
3. Changing the water
Change the water frequently, which can increase the dissolved oxygen in the water. When changing the water, only one-third to one-quarter can be replaced; do not replace a lot all at once, as the fish will not adapt. Maintaining clear water quality in the aquarium is extremely important. Only when there is sufficient dissolved oxygen in the water can the fish grow, and grow quickly. Otherwise they stop growing, or even die. When to change the water has no fixed rule; it can be determined according to water quality. Change more when the water is cloudy, otherwise change less.
4. Density
Because a home rectangular aquarium is relatively small in volume, by no means should you keep too many; fewer is better than more. For example, in a container 40 cm long, 25 cm wide, and 30 cm high, you can keep 6-8 small goldfish 5-7 cm long. For a round glass bowl with a diameter of 26 cm and a height of 13 cm, you can keep 4-6 small goldfish 4-6 cm long. Adult fish with a body length of more than 8 cm are not suitable for keeping in small glass bowls; they need to be kept in large glass tanks or ceramic tanks, equipped with a small oxygenator as a backup to prevent oxygen deficiency. These stocking densities are only reference numbers, and must also be decided according to the water temperature, the strength or weakness of the fish, and the quality of the water; they cannot be applied mechanically. Generally speaking, when the fish are large, keep fewer; keep more in winter and fewer in summer; when the water temperature is low you can keep more, and when the water temperature is high you should keep fewer.
Golden crucian carp are relatively easier to keep than goldfish, and they also look good, making them very suitable for home viewing and for keeping in parks.