2. Make full use of the weakness that small melon worms will die on their own after 24 hours without finding a host. The water for keeping goldfish should be used after exposure or standing for 2 ~ 3 days. This is one of the best ways to prevent melon diseases.
3. Sprinkle the whole pool with 0.05-0.1g of mercurous chloride per cubic meter of water, or when the water temperature is lower than 15℃, put 0.0 1g of mercurous chloride in 50kg of water, wash the sick fish for about 0.5-l hours, then wash them with isothermal fresh water, and then put them back to the disinfected fish. However, it should be noted that mercurous nitrate is toxic and should be used with caution. In particular, the resistance of small fish to liquid medicine is weaker than that of big goldfish, so it is necessary to reduce the concentration of liquid medicine and shorten the soaking time appropriately.
4. Release 0.5 ~ 1 ml of mercuric chloride into 10 kg of water and bathe the sick fish for 5 ~ 15 minutes. If the color is ok, you can directly wipe the part or the whole body with mercuric chloride. After washing with fresh water, put it in clean fresh water for breeding, or sprinkle 3 ~ 5 ml of mercury chloride according to L cubic meters of water to make the concentration of pool water 3 ~ 5 mg/L. After 2 ~ 3 days, depending on the illness, you can use the above bath washing method for one time, and then add clean fresh water for breeding. At the same time, you can get satisfactory results by prolonging the sunshine time, properly raising the water temperature, stopping eating and increasing oxygen.
5, according to the characteristics of the small melon worm is not resistant to high temperature, put it in the sun, when the water temperature rises to 30℃, rub mercuric chloride all over the fish, then wash it with fresh water, take it out in clean, isothermal and light green water, feed it, stop eating, sun 1 week, and then replace it with fresh water to see the recovery.
6. At the water temperature of 20 ~ 26℃, bathing sick fish with 0.3 g or 0.4 g malachite green solution per cubic meter of water for 2 hours can kill small melon worms and is safer for goldfish.
If we find that goldfish grow white spots from the end of/kloc-0 to the beginning of February, then goldfish may suffer from acne. Just put a little erythromycin in the jar and it will be cured.
Prevention methods of goldfish white spot disease
Cultivation technology of snapdragon is a perennial herb of Scrophulariaceae. The plant is about 50 cm high, and the flowers are gorgeous and colorful, which has high ornamental value. Because the flowers of snapdragon are very similar to goldfish, it is named. In addition, snapdragon has high medicinal value, such as clearing away heat and toxic materials, cooling blood and reducing swelling.
According to statistics, there are about 300 kinds of goldfish, and new varieties are still emerging, which are basically divided into five categories. 1, grass species: it looks like crucian carp, but it is brightly colored, such as red crucian carp. 2. Language type: the shape is similar to seal script, hence the name. It is basically similar to the dragon species, but its eyeballs are not prominent, such as pearls and gills.