CATDOLL : CATDOLL: What should I do if my tropical fish at home have white spots on their bodies?

Isolate the Ichthyophthirius from the first day of discovery and raise the temperature to 22°C.

On the second day, raise the temperature to 26-28℃ and add salt and yellow powder (to avoid secondary local infection of Ichthyophthirius).

On the third day, raise the temperature to 30°C and clean the filter cotton.

Generally, on the fourth day, you can see that the white spots on the fish are significantly reduced, but there may be congestion. This is normal and is a secondary symptom of Ichthyophthirius, so salt and yellow powder should be used as antibacterial and anti-inflammatory drugs. Note that the filter cotton should be cleaned once every two days and yellow powder should be added once

After a week, the white spots on the fish will basically disappear. However, in order to completely eliminate them, you need to observe for a few days. If the condition recovers, feed it in small amounts.

Symptoms of white spot disease: In the early stages of the disease, the fish will rub their bodies against hard objects in the hope of removing the nasty pathogens from their bodies. Many small white spots can be seen on the body surface, fins and gills of the diseased fish. The diseased fish are emaciated, floating on the water surface or rolling in groups in a corner, and rarely move. In the later stages, the body surface is covered with a layer of white film, the mucus increases, and the body color becomes dull.

The environment in which white spot disease occurs: There is obvious seasonality, and the water temperature fluctuates, which is suitable for the reproduction of Ichthyophthirius. The water temperature of 15-23℃ is most suitable for the reproduction of Ichthyophthirius.

White Spot

Let me tell you in detail

【Notes】

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Ichthyophthirius often parasitizes under the skin, caudal fins and gills of fish, sucking nutrients from the fish's tissues and stimulating the fish's body to secrete a large amount of mucus, thus forming white pus bubbles on the fish's body surface, all over the fish's body. When tropical fish are infected with this disease, white spots first appear on the fish's fins, and the fish appear to be mentally sluggish, floating on the water surface, and rarely moving. Or they often swim sideways quickly next to water plants and gravel to scratch themselves.

Symptoms of white spot disease: In the early stages of the disease, the fish will rub their bodies against hard objects in the hope of removing the nasty pathogens from their bodies. Many small white spots can be seen on the body surface, fins and gills of the diseased fish. The diseased fish are emaciated, floating on the water surface or clustering in a corner, and rarely move. In the later stages, the body surface is covered with a layer of white film, the mucus increases, and the body color becomes dull.

The environment in which white spot disease occurs: There is obvious seasonality, and the water temperature fluctuates, which is suitable for the reproduction of Ichthyophthirius. The water temperature of 15-23℃ is most suitable for the reproduction of Ichthyophthirius.

1. Heating

A safer method

You didn't say what kind of fish you had.

I think it should be goldfish

Find a separate container

Not too small

At least a big basin

No medicine is needed to treat Ichthyophthirius

It is best to have a small filter, which requires a heating rod.

Isolate the Ichthyophthirius on the first day of discovery and raise the temperature to 22°C. Stop feeding!

On the second day, raise the temperature to 26-28℃ and add salt and yellow powder (to avoid secondary local infection of Ichthyophthirius).

On the third day, raise the temperature to 30°C and clean the filter cotton.

Generally, on the fourth day, you can find that the white spots on the fish are significantly reduced, but there may be congestion. Don't worry, it's normal, it's a secondary symptom of Ichthyophthirius, so we have to use salt and yellow powder as antibacterial and anti-inflammatory drugs. Note that we have to clean the filter cotton once every two days and add yellow powder once!

After a week, the white spots on the fish are basically gone. But in order to completely eliminate them, we need to observe for a few days. If the condition recovers, feed it in small amounts.

I observe for 3-5 days. After 3-5 days, the fish's condition will recover and it will eat normally. Only then can it be transferred to a large starvation tank!

2. Use of medication

For example, fish shops have white spots.

Malachite Green

Mercurous nitrate

They are all effective drugs for treating Ichthyophthirius punctatus

But it is highly toxic

Not paying attention to dosage

Easy to cause harm

Malachite green and mercurous nitrate

More toxic

Harmful to the human body

Do not touch the skin

Don't let children play with trembling dates.

In fact, many white spots contain

Malachite Green

Get a big basin

At least 5 kg of water capacity

Follow the instructions on the packaging hole for the proportion

Add the medicine you bought

For example, malachite green

The concentration of the solution is lower

There are also small bottles of powder for sale

Add until the water turns green.

Don't make the color too dark

Overdose is poisonous

3 consecutive days

Once a day

Each bath lasts 20-30 minutes

Add oxygen to the aeration head, put it in an isolated container after the medicated bath, add yellow powder and salt

Salinity not exceeding 1%

Add yellow powder until it changes color

Prevent the disease from spreading.

Strictly stop eating during this period

Pay attention to the dosage of the medicine

Strictly follow the instructions to join

No harm to fish

After the white spots disappear, continue to isolate and rest for 3-5 days

Waiting for status to be restored

After gradually feeding small amounts

Can eat normally

Transfer to the large cylinder

Your fish is sick

Ichthyophthirius

, also known as

White Spot

sick.

[Pathogens]

Ichthyophthirius

larva

Attacking fish

skin

When the larvae infect the host, they burrow into the skin or gills.

Epithelial tissue

, wrapping its body in a small cyst secreted by the host, growing and developing inside the cyst and becoming an adult.

In the water

, after swimming freely for a while, it lands

Water

At the bottom, it settles down and secretes a layer of

Gel

Cysts.

Insect body

Reproduction by fission produces hundreds or even thousands of ciliated larvae.

Sophora japonica in the water

Swimming freely and looking for a host, this is the infection period of the Ichthyophthirius punctatus. The larvae infect a new host and begin their life cycle again.

[symptom]

It is common for ornamental fish to become ill due to Ichthyophthirius parasites.

Tail fin

and

Body surface

There are white spots on the skin.

at this time

The sick fish continued to forage for food as usual.

A few days later

White spots all over

whole body

The fish loses its ability to move, often becomes sluggish, and floats on

water surface

, slow swimming, loss of appetite, weight loss, skin accompanied by

Bleeding Point

, sometimes swinging left and right, and

Aquarium

wall,

Waterweed

,

Sand and gravel

Swimming sideways quickly to scratch the itch, and gradually losing balance while swimming. The course of the disease is generally 5 to 10 days. The infection speed is very fast. If not treated in time, it can cause a large number of deaths in a short period of time.

The suitable water temperature for Ichthyophthirius minimus is 15-25℃.

Early Winter

,

Late Spring

and plum rain season, especially in the absence of

illumination

When the water temperature rises to 28℃, the Ichthyophthirius punctatus will begin to die.

[Prevention and treatment methods]

Ichthyophthirius spp. is not resistant to high temperatures.

weakness

, increase the water temperature, and then provide drug treatment, usually the cure rate can reach more than 90%. If the treatment is timely, the cure rate can reach 100%.

Using 0.05 ppm

Malachite Green

It can be mixed with 25ppm formaldehyde solution for better effect. It can also be soaked in 1% salt water for several days, or in 2ppm methyl blue solution for 6 hours a day; or soaked in 2ppm quinine hydrochloride solution at 28-30℃ for 3-5 days, or soaked in 2ppm mercurous nitrate solution for 30 minutes; or soaked in 50-70ppm red mercury solution for 5-15 minutes, or sprayed with 0.1-0.2ppm mercuric nitrate solution, all of which can achieve good results.

Raise the temperature, add salt, change the water, the old three. They are all physical methods. White spots are easy to treat, don't worry. Most tropical fish are more delicate than cold-weather fish, so your situation is normal. Don't use medicine easily, but if it is serious, use potassium permanganate medicine bath, the water will be slightly red, 5-10 minutes, strictly control the time, I personally don't recommend using medicine, if the fish is not good, don't buy medicine in the fish market, 9.9 out of 10 are scams. The last point is that cold-weather fish and tropical fish are not recommended to be mixed.

This is because the water temperature changes too much when you change the water, or it may be because the water temperature of the fish tank changes too much. Just use a heating rod to raise the water temperature to 30 degrees. You can add some sea salt in moderation. No need to add any medicine. It is best to change the water isothermally every time (the new water should be the same temperature as the water in the fish tank, or 1~2 degrees higher than the water in the fish tank). It is best not to keep goldfish and tropical fish together.