How does goldfish grow black spot to do?

Goldfish is an ornamental fish evolved from crucian carp, which is the most ornamental fish with Chinese characteristics, which is very popular with people. But in the process of goldfish culture, many other factors, such as improper breeding, lead to dark spots on goldfish, which seriously affect the beauty of goldfish. Let's take a look at how goldfish grow black spots.

Drug poisoning

The goldfish poisoned by drugs will have black spots on their body. for example, if the heavy metal salt drugs are poisoned, the water should be changed in time, and the temperature of the water should be raised in time to speed up the metabolism of the fish, so that the toxic substances in the fish can be eliminated more quickly. but it should depend on the situation, and if the situation is serious, you should go to the doctor in time to ask for medicine.

Water quality problem

It is much easier to deal with black spots on goldfish caused by water quality problems. Many people do not understand why water quality darkens the body color of goldfish. Water quality problems can be divided into two aspects, one is the aging of water quality, the other is the sudden change of water quality. The former is due to the high ammonia nitrogen in the water, and the latter is due to the large seasonal temperature difference. The problem of water quality is very simple. First of all, change the water to the fish tank to see what the situation is. At the same time, the fish tank should be disinfected and sterilized when changing the water, so as not to leave pathogenic bacteria and do useless work, and give goldfish a healthy sterile environment after disinfection. Second, after the diagnosis of the cause, targeted treatment, sterilization of goldfish can use light potassium permanganate solution for medicine bath, the general time of medicine bath is about 15 minutes, of course, during this period, according to the adaptation of goldfish to determine the time of medicine bath, do not fix death but according to the actual situation of goldfish to reasonable treatment.

Disease causes

1. The cause of the disease: the main cause of black spot disease of goldfish is that the fish is injured by friction when fishing and transporting goldfish, and the fish is infected by mold spores after being injured by trauma or parasites, which leads to black spot disease.

2. Physical prevention and control: we should do a good job in preventing black spot in daily life, for example, be careful when fishing and transportation, do not let goldfish get hurt, and avoid being infected by parasites and germs. At the same time, a small amount of salt can be put into the aquarium of new fish to inhibit the occurrence of water mildew, and attention should be paid to cleaning and disinfection when putting live bait, so as to better keep the water quality clean, isolate the growth of water mold, and prevent goldfish from being infected with black spot.

3. Drug prevention and treatment: if the goldfish has unfortunately been infected with black spot, you can try to sprinkle 250 grams of salt and 250 grams of baking soda on the fish tank of 100 centimeters, 55 grams and 45 centimeters. You need to stick to the medicine bath for several days. The treatment effect is very significant. Alternatively, the fish can be washed for 10 minutes with 0.3 grams of malachite green or methylene blue in 100 kg water, or the goldfish body can be washed with 2% salt water, once a day for 5 minutes each time. In addition, you can also use 2/1000000 potassium permanganate and 1% salt water to soak the diseased goldfish for about 20 to 30 minutes each time, and its effect on the treatment of black spot is also very obvious.