The fish at my traffic light got sick. What should I do?

This may be melon disease, also known as white spot disease. [The pathogens are LEPIDOPTERA, LEPIDOPTERA, LEPIDOPTERA. This is a large ciliate. The morphology of larval stage and adult stage is very different. The larvae of cucurbitaceae attack the skin and gills of fish, especially the skin. After infecting the host, the larvae burrow into the epithelial tissue of the skin or gill, wrap the body in the vesicles secreted by the host, grow and develop in the cells, and become adults. The adult broke through the cyst and fell into the water. After swimming freely for a period of time, it falls to the bottom of the water, stops and secretes a layer of colloidal capsules. The worms in the capsule divide and reproduce, producing hundreds or even thousands of ciliated larvae. Larvae come out to swim freely in the water, looking for a host, which is the infection period of small melon worms. The larva infects a new host and restarts its life history.

I'm not sure you can check the following symptoms:

【 Symptoms It is common for ornamental fish to get sick due to parasitism of cucurbitaceae. At the initial stage of fish infection, there are white spots on the chest, back, caudal fin and surface skin. At this time, the sick fish feed as usual. A few days later, white spots covered the whole body, and the fish lost the ability to move. They often moved slowly, floated on the water, swam slowly, lost appetite, lost weight, and the skin was accompanied by bleeding spots, sometimes swinging from side to side, swimming quickly sideways beside the aquarium walls, aquatic plants and gravel, and gradually lost their balance. The course of disease is usually 5 ~ 10 days. The infection rate is extremely fast, and if it is not treated in time, it can cause a large number of deaths in a short time. The suitable water temperature of gourd is 15 ~ 25℃. The disease mostly occurs in early winter, late spring and rainy season, especially in the absence of light, low temperature and live bait. When the water temperature rises to 28℃, the gourd will begin to die.

If it is this disease, you can do it in the following ways:

【 Prevention and control methods mostly adopt the weakness of small melon insects that can't withstand high temperature, increase the water temperature, and then combine with drug treatment. Usually the cure rate can reach more than 90%. If treated in time, the cure rate can reach 100%. The mixed treatment effect of 0.05ppm malachite green and 25ppm formaldehyde solution is better. It can also be soaked in 1% salt water for several days, or soaked in 2ppm methyl blue solution for 6 hours every day; Or soak in quinine hydrochloride solution at 28-30℃ for 3-5 days, or soak in 2ppm mercurous nitrate solution for 30 minutes; Or soak in 50-70 ppm mercury chloride solution for 5-65 minutes, or spray 0. 1-0.2 ppm mercury nitrate solution.

I'm hungry ... a little wordy ... I really don't understand. You can ask at a nearby drugstore ... just buy some medicine. )

As for the impact, it will definitely affect other guppies. You can isolate them, or use 3 drops of mercuric chloride solution for two days, otherwise other groups of fish will suffer. Take good care of your fish.