Signs to identify sick koi:

There are some early warning signs that your fish may be getting sick.

•  Changes in behavior:

The first sign of a problem usually begins with a fish swimming separately from the flock, often hovering near the surface of the water to breathe. If your fish don't eat or eat little, it's a sure sign that something is wrong. Next, pay attention to the swimming posture of the Koi, a healthy fish needs a straight, soft, non-crooked swim that makes noise. When sick, the fish will have the appearance of swimming super crooked or the head crashes into the wall of the tank, the shape is not straight, the body cannot float on the surface of the water. Especially when the fish is stationary or not moving, it is possible that the fish's disease is becoming serious.

• Changes in appearance

Koi fish eyes

Koi eyes can give you many clues about their disease. A normal healthy Koi eye will be clear, not red, convex, or swollen. If you see any koi fish with abnormal signs in the eyes such as cloudy eyes, bulging eyes,.., then it is very likely that they are sick. Let's quickly deal with that problem now!

Koi belly

The belly may be swollen due to bloating or it may be a good thing if it is a female carrying eggs. But it can also be a sign that the fish is constipated or infected with parasites, you should pay close attention to the abdominal fish with unusual behavior to be sure if the swollen belly of the fish is sick or not.

Koi fish gills

Infected gills often have white discharge or an abnormal amount of mucus, which can also be gray or yellowish. You may notice the base of the gills is white or see white when they open for respiration. Healthy gills are dark pink. Also, if the gill lid remains open (instead of opening and closing during respiration) then this is a sign of parasites. Also, look for wounds or redness around the gills or mouth. A koi fish that can't breathe properly deteriorates quickly, so early detection of problems around gills and mouth is one of the best ways to save a koi fish from dying

Colors of Koi fish

Discoloration on the body of koi fish can also be caused by many causes such as skin problems, diseases in the body, and factors in the aquarium such as oxygen and light. In addition, fish also change color when they are stressed or fish attack each other.

Scales, fins, and changes outside the body

The fins of Koi fish are always expanding, and the fish has closed fins, which means that the fish is sick. Normal healthy Koi fish never have any red streaks or fluff or fluff anywhere on its fins.A torn Koi fin can also be a sign that the Koi is having health problems.

The scales of healthy Koi fish are usually smooth and interwoven quite well. Normal Koi fish should not lack any scales. If it is missing, it is very likely that your fish is carrying pathogens in the body.

If white spots appear on the body and head of the fish , it is also a sign that you need to pay attention to and should separate the fish into a separate area. Check if there are any red sores on the fish's body, as this is a bad sign for Koi fish

Recognizing the first signs of the disease is important because it can be much easier to control if detected early. Depending on the case, the disease can spread relatively quickly to many or all schools of fish in the pond. You should always count the number of your fish when feeding and carefully observe the fish for any abnormal signs.

Contact Quhaku Koi Farm for advice from Koi fish experts on the problems you are facing. Quhaku Koi Farm is always with you.