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How to keep koi fish, common bacterial diseases of koi in autumn - skin inflammation and congestion disease
Bacterial diseases: skin inflammation and congestion disease (1) Cause: Most of the affected fish are large older fish and koi over one year old. The epidemic season runs from late spring to early autumn and can cause massive fish deaths. It is most prevalent when the water temperature is 20-30°C, and below 20°C, a few cases still occur...
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How to Raise Koi So They Grow Fast? Answers to Water Mold Infection Questions
Is koi water mold contagious? Water mold, also known as white fuzz disease, is extremely contagious. If not controlled properly, all koi in the tank will become infected. Once discovered, it must be treated promptly, and the water must be changed. The body surface or fin rays of diseased fish are parasitized by grayish-white, cotton-like mycelium. Oral vitamin E, every...
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Is Koi Scratching Against the Tank a Sign of Saprolegniasis? A Detailed Guide to Koi Keeping Methods
Is koi scratching against the tank a sign of saprolegniasis? First, let us understand the symptoms of saprolegniasis. Water mold is widely found in freshwater or brackish water bodies and moist soil around the world. It lives as a saprophyte on dead organic matter and is a commonly present mold, mainly including the order Saprolegniales...
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Koi Breeding Filtration System and the Fastest Treatment for Saprolegniasis
What is the fastest way to treat saprolegniasis in koi? Koi saprolegniasis is caused by a fungal infection of injured koi skin. In water, the fungal bodies appear cotton-like, but outside the water no symptoms are visible, so diagnosis should be made by observing in the water....
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How do you raise koi so they get plump? Treatment methods for localized scale protrusion
What are the methods for treating localized scale protrusion in koi? The biggest characteristic of scale protrusion in koi is that some or all of the scales on the koi's body surface take on a pinecone-like appearance, and the body surface of the diseased fish is also relatively rough. The base of these scales is edematous, and this is also accompanied by half...
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Koi Keeping Precautions and Symptoms of Koi Enteritis
What are the symptoms of koi enteritis? First, let's understand what enteritis disease is: enteritis disease, also known as rotten intestine plague, is a relatively common and widespread bacterial disease. It can harm various ornamental fish, and of course it is also very harmful to fish...
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Koi Fish Disease Symptoms and a Detailed Guide to Treating White Spot Disease
Koi white spot disease symptoms are caused by a relatively large protozoan ciliate visible to the naked eye -- Ichthyophthirius multifiliis. It parasitizes the skin, fin rays and gill tissue of koi, feeding on the epithelial cells of the koi. In severe cases, the whole body skin and fin rays...
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How to raise koi so they grow fast? Causes of Chilodonella and treatment methods
Chilodonella symptoms: During the fry stage, it mainly damages the skin and fin rays. In adult fish, besides attacking the skin, it also heavily infests the gills, oral mucosa and nostrils. When the fish body and gill filaments are irritated by large numbers of pathogens, it causes excessive mucus secretion, which glues the gill lamellae together...
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Common diseases of koi and treatment methods for koi trichodiniasis
Symptoms of koi trichodiniasis: When infected, the gill filaments secrete excessive mucus, wrapping around each other, causing difficulty in breathing; the fish body turns black, and external mucus increases, as if covered by a layer of white mist. If not treated in time, death will occur soon. It is especially harmful to fish under 20 cm...
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How often should you change the water for koi, and how to treat myxosporidiosis
Symptoms of myxosporidiosis: Generally, cysts of varying sizes form on the body surface, under the skin, on the gills, and in the muscles, causing the fish to turn black, become thin, and swim weakly; when the parasites infest the gills, many white cysts are visible to the naked eye on the gills, which damages the gill tissue and affects the koi's...
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