What are mouth ulcers in koi?
Koi mouth ulcers are a disease caused by infection with the fungus Aphanomyces invadans, which causes white tufts around the mouth and spreads to the body and fins of fish. The disease can lead to sores and kill fish if not treated in time.
Causes of mouth ulcers in koi
Mouth ulcers in koi appear mainly due to the following causes:
- Water quality is not guaranteed
- Non-standard filtration, inefficient filtration
- Stocking new fish infected with the source of the disease
- Koi with open wounds
- Low pH and temperature in water
Symptoms of mouth ulcers in koi
Mouth ulcers in koi can be recognized by the following symptoms:
- Koi fish when swimming often protrude the white tufted mouth to the surface of the water
- Stop eating or eat less
- Koi fish have white tufts on their mouths, bodies, and fins that can become swollen, cracked, or sores
Koi fish may lose part or all of their mouth, body, and fins due to disease
- Koi fish can die if the disease is severe
How to treat mouth ulcers in koi
To cure mouth ulcers in koi, you need to pay attention to the following measures:
- Isolate sick fish into separate tanks, treat sick koi by applying methylene blue and Tetracycline antibiotics to sores for 5-7 days.
- Clean and disinfect the koi pond, add salt, methylene blue (calculate the amount of salt and methylene blue sufficient for the volume of water in the aquarium) and plug in the water heating to 30 degrees Celsius
- Effervescent plug
Check and maintain consistent oxygen, pH and temperature levels in the water
- The fish is sick so it should be restricted or fasted
There are many different treatments, you should seek out experts so that they can accurately understand the disease of koi and give the best treatment for your koi.
How to prevent mouth ulcers in koi
- Check the water quality daily to ensure indicators such as PpH, oxygen, ammonia, nitrite concentrations are at standard levels.
- Periodic cleaning of purifiers, aquarium/aquarium equipment periodically.
- Do not stock too many koi in a lake/tank, choose a spacious and airy lake.
- Add probiotics to aquariums to create favorable conditions for beneficial bacteria growth.
- Choose reputable food, provide all necessary nutrients, increase the resistance of koi fish and especially do not leave excess food in the lake to reduce the risk of water pollution of fish - one of the causes of koi pathogens.
- When buying fish, you should choose to buy at reputable fish selling establishments with clear origin ...
Mouth ulcer disease in koi is a dangerous and common disease that needs to be detected and treated early to avoid serious consequences. You need to pay attention to the water quality, filtration system, fish source and diet of koi fish to prevent and treat diseases effectively. If you need more information or advice, you can contact experts or reputable koi websites. I wish you success and have a beautiful and healthy koi pond.