White spot disease is the most common fish parasites, mainly in the late fall and early spring low water season carps and cichlid tropical fish more susceptible. White spot disease is also called the Little Ichthyophthiriasis small melon worm body (lchthyophthirius multifiliis) spherical, all wearing ciliated diameter of about 0.8mm, as visible white spots. In the case of water temperature 18-23 ℃, Ichthyophthirius parasite often in the skin, tail fin and gills of fish, smoked fish tissue nutrition and stimulate fish secrete large amounts of mucus, thus forming a sheet of white fish pus bubbles, fish all over the body. Tropical fish this disease, the first performance in the white spots on the fins, the fish seem sluggish spirit, floating on the water, very little activity. Or often beside the plants, gravel walks sideways quickly rub itch. Severe, leading to fish in deep dense white spots, stop feeding, body weight loss, difficulty breathing until death, the course is generally about 5 to 10 days. Because Ichthyophthirius not high temperature, generally above 25 ℃ will stop development, when the water temperature rose to 28 ~ 30 ℃, it will die a natural death. So suffering tropical fish white spot disease, the treatment and less troublesome. Only the water temperature is maintained at about 28 ~ 30 ℃, one week later, cysts fish will all fall off the table. If at this time the combined drug therapy, the effect will be better. When drug therapy can be used for dipping treatment using mercury nitrate in the aquarium of 0.1ppm. For sick fish, available 2ppm of 0.5ppm mercury nitrate or diseased fish wash invasion malachite green solution for 2-3 hours. When the symptoms disappear after sick fish, fresh water should be replaced in order to avoid too long causing fish mercury poisoning. Prevention of the disease when only keep the water temperature above 25 ℃, the introduction of new fish, new fish first with potassium permanganate solution or brine into the tank after sterilization, the general will be able to prevent the occurrence of white spot disease.
White spot disease symptoms: early illness, sick fish will use body rub hard, hoping to clear the body of nasty pathogens. Diseased fish body surface, fins and gills visible on many white spots. Diseased fish weight loss, or cluster iceberg floating on the water, very little activity. As late surface covered with a layer of white film, mucus, body color bleak.
White spot disease incidence environment: There is a significant seasonal temperature fluctuations Ichthyophthirius breeding ,15-23 ℃ temperature most suitable for breeding Ichthyophthirius down.
Treatment of white spot disease: no matter what the drug first to raise the water temperature to 30 degrees. Available Ichthyophthirius not high temperature ways to bring the fish produced in the surface of the spores mature rapidly accelerate its growth rate, so that they come off from the fish surface. Drugs: 1. Also be 5% brine for a few days; 2. Or with two millionths (2ppm) of methylene blue solution, soak six hours a day; 3. 0.05 parts per million (0.05ppm) of malachite green and twenty-five millionths (25ppm) formaldehyde solution mixed treatment, better effect; 4. Or with two millionths (2ppm) 28 ~ 30 ℃ of quinine hydrochloride liquid soak 3 to 5 days; 5. Or with two millionths (2ppm) of mercury nitrate liquid soak for 30 minutes; 6. Or soak in parts per million fifty to seventy (50 ~ 70ppm) concentrations of mercurochrome solution for 5 to 15 minutes, 2 times a day
Subject white spots disappear after treatment, medication for some time still not attached to the fish so Ichthyophthirius death
Note: mercury nitrate, malachite green, a toxic product, the body will produce great harm, easy to cancer. It is not recommended for use in the treatment of other diseases should also be avoided
Note: Malachite green referred chemically alkaline, of the formula: c23h26n2, molecular weight: 346.4, green dye can be used in the industry. But treatment is also applied a lot of fish (in particular fisheries), can be used for a variety of fish parasites and pathogens in vitro (including: mold, bacteria, skin and gill flukes Ministry infections, etc.), has been proven effective in clinical treatment of disorders including: White spot disease, fungus, mildew silk, skin, mucous disease, and so on.
Note: mercurochrome is a medication, is also a topical soak method is to grasp the main concentration and time. In the beginning only a small part of the body, can be wiped, but if the latter, are all yes, then, after dilution with the same wipe and soak. Wipe only partial, need not diluted because wiping is to first remove the fish, such as fish drying time should not be very long, rub immediately after dilution into the water, efficacy big loss, not efficacy. Therefore, wiping can be local, but should not be diluted, if the body, then it should be soaked. Because the body clean, wipe the gills is very difficult to operate, but it is difficult, careless operation can also cause trauma to the gills. |