YouTube video (Gerald Bassleer) presenting case #239: bacterial infection in marine clownfish (Amphiprion ocellaris). The presenter describes clinical signs (red patches, frayed fins, heavy mucus, necrotic gills), microscopy findings of heavy bacterial loads on skin and gills, likely causes (overcrowding, poor filtration, poor water quality, contaminated food), and recommended actions (50% water change, antibacterial treatment such as neomycin or ferrantadone, improved husbandry, supportive functional feed). The video also references related resources (books, multilingual marine disease book, Patreon training).
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Hello, dear aquarist, welcome again to one of my videos on fish disease cases. And today it's about the marine fish, the clownfish, Amphiprion ocellaris, which had a bacterial infection. I show you my PowerPoint so I can share you the details that I found on those diseased fish. Well, books on fish diseases are available and I also have a special one on marine fish diseases available in four languages. Dutch, French, German and English. You can see the link below where you can order them. And here I received the marine fish for examination, the amphibian ocellaris, the clownfish. And you can see they're dying. And this one is suffering heavily, breathing. Well, they were dying and it's from a breeder and he was having serious problems. So the few samples I received told me that, well, examination with the microscope could give me more information and I could help him to solve the problems which he had with his offspring. There were some red patches on the side of this fish, on the side here and on the back. And you can see the fins are frayed. So the fish was in bad condition. So we took a skin scraping and on this video you could see the massive bacteria which we found in the fluid. From the scraping you can see the little points, the little steps. I think two, three different kinds of bacteria were having a serious load on the skin and in the mucus of the fish. And of course the fish were dying because the gills were very badly affected. You can see they were necrotic, completely involved with bacteria, a lot of slime loss. So the deformation of the gills was causing suffocation of the fish and causing the fish, well, to have a kind of pneumonia or gillmonia. So the fish were dying for that particular reason because particularly the gills were badly affected. So check this origin of this bacterial infection. Yes, think about it. Where could it come from? Because bacteria are always there and there is always, well, a reason why the bacteria get there. So did you do a water test? Was there ammonia? Was there nitrite? I know here, in this case there was a lot of overcrowding, a lot of, a lot of fish. And sometimes the filtration was not well taken care of. So poor water quality, stress, overcrowding, bad quality of the food. This could be a reason that the food cans were left open in the fish house, you humid and of course getting a risk of pathogens to get, or I would say microbes to get inside. And that has an impact on the health of the fish. So improve the quality of the fish. Keeping, that is the first thing to do and the second thing you can do immediately is do good water change at least 50% and that 50% water change could already be 50% of the cure. Of course apply an antibacterial medication. Ask your fish doctor or your pet shop. They can consult the products they have available for the marine fish. We used in the past a lot of neomycin or ferreltadone for these kind of incidents but depends on what you can get. You can also help with a functional fish food that helps the repair of the fish like Dr. Besley or Baisher food chlorella which is very good for the marine fish for the general health. Well books on fish diseases can help you to understand and I hope you try to get this new addition I made recently well a couple of years ago well training on fish diseases at my Patreon. This can help you to understand better fish diseases and to become a professional. So thank you for watching and I have several more disease videos on marine fish. Check my playlist. Thank you for watching. Bye bye.
