My tropical fish have white pimples on them, what s going on

It should be white spot disease, let me introduce it to you:

Tropical fish white spot disease**.

Due to the large temperature difference between day and night, tropical fish in tanks without thermostats are most susceptible to white spot disease. White spot disease is also known as small melon worm disease, after tropical fish get this disease, first grow small white spots on the gill cover and each fin, and then grow all over the body, and the mucus on the body surface increases in the later stage, and the white spots become white cyst bubbles, which seem to be covered with a layer of white membrane. Diseased fish tend to be significantly less active, floating on the surface of the water or congregating in a corner, and if not timed**, they will gradually lose weight until they die.

The melon worm is a parasite, which likes to parasitize the surface of the fish body when the temperature is 10-20 degrees Celsius, so it is most prone to disease in spring and autumn, with strong seasonality. It is very simple to deal with white spot disease, in addition to the drugs that are sold in aquariums to treat white spot disease, you can also use economical, simple and effective methods.

According to my experience, the general breeding of tropical fish tank, only need to adjust the temperature to 30, 3-4 days later, the white spot will disappear naturally, this is because in the water temperature above 28, the small melon insect can not develop and grow, according to its short life cycle, will be able to eliminate the hidden danger of white spots. But if it is an aquatic plant ecological tank, the water temperature of 30 will be unfavorable to the growth of aquatic plants, at this time, methyl blue and malachite green can be configured in water according to 1:1, drip into the fish tank, so that the water in the fish tank is slightly blue, and it can also kill small melon insects for 2 consecutive days, methyl blue and malachite green have no effect on nitrifying bacteria, and will not destroy the circulating filtration ecosystem of the fish tank, and after 1-2 days, the micro blue in the water will disappear by itself.

To prevent the occurrence of white spot disease, the key is to control the water temperature, do not let the water temperature drop below 22-25, especially in spring and autumn, we must pay attention to keeping warm at night.

It could be caused by worms or bacteria, and here's a white spot disease.

Goldfish and tropical fish are all present, caused by melon worm infection, and are most likely to occur in late spring and late autumn.

**: Parasitic melon worm.

Prevention and control methods: extend the drying period of tap water and let the water "cook" through. With a 150V heating rod, the water temperature in the fish tank rises to more than 30 within 2-3 days, and the melon insects can get out of the fish body by themselves, and use the siphon to suck out the dirt and pathogens at the bottom of the tank, and add an appropriate amount of new water.

2. Vertical scale disease.

Also known as pine scale disease.

**: Caused by Trichobacterium punctum infection, caused by low water temperature in winter or too large difference in water temperature during water change.

Prevention and control method: a basin of water to prepare potassium permanganate, to prepare dark water, soaking time to fish tolerance. After soaking, rinse the fish in clean water, and then apply the diseased area with dry nitrofuracillin, and gradually reduce the area of pine scales after several times, and finally heal.

3. Printing disease.

The body surface of the fish is inflamed, there are red spot marks, the scales fall off, the muscles are congested, and the sick fish is slow to react and gradually die.

**: Caused by a Gram infection.

Prevention and control methods: prevent fish body collision and injury, increase the amount of oxygen (such as small aeration pump replaced by large aeration pump), with ultraviolet germicidal lamp (commercially available) to increase irradiation. Feed bait containing furazolidone.

Similarly, there are a number of other diseases:

First of all, your breeding is not reasonable, goldfish and anglerfish are cold-water fish, and you can't raise tropical fish with them.

The water temperature requirement for tropical fish should be controlled at 27-29 degrees Celsius!! This disease is white spot disease and is a very common disease in fish.

If a fish has this disease, there is something wrong with your water quality!

If a tropical fish has white spots, it may be due to white spot disease. You can add the right amount of salt to the water and raise the water temperature to about 29 31, and the sick fish can be cured in about a week. For fish with weak constitution, it is best to soak them in the liquid medicine for 15 minutes before putting them in the fish tank.

What happens if you encounter white spots on tropical fish in the process of raising tropical fish? In fact, this may be because tropical fish have white spot disease, but white spot disease is the best group of fish diseases, so don't worry too much when fish suffer from this disease.

In the case of white spot disease, the sooner, the better the effect. You can add an appropriate amount of salt to the water and raise the water temperature to about 29 31, and the sick fish will be cured in about a week.

However, for some tropical fish with very weak physique, it is best to use a medicated bath**, you can put it in an easy place with antibacterial and anti-inflammatory liquid to soak for about 15 minutes, and then put it back into the fish tank that has been replaced with new water and sprinkle it with an appropriate amount of salt.