Gerald Bassleer presents Fish Disease Case #236: guppies infected with the parasitic protozoan Ichthyobodo (formerly called Kostia). He describes clinical signs (weight loss, reduced appetite, resting on the bottom), demonstrates parasites on gill microscopy, and shows necropsy evidence of secondary bacterial infection (melanomacrophage centers in liver, spleen, kidney). He recommends treating the primary parasite (e.g., FMC or similar products) combined with antibacterial therapy and supportive care (dietary supplements and references to his books and Patreon for further training).
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Hello dear Aquarist, thank you for joining again. One of my cases on fish diseases today, number 236 about a guppy of a parasitic infection called Ichthyobodo or used to be called Kostia. And I will share you my PowerPoint and the videos of the fish and of the parasites in my PowerPoint presentation. So this case 236 is something we try to explain you to understand what fish diseases is all about. And particularly these videos are important for you. But don't forget that books with pictures and a lot of text and information on prevention, control and particularly also diagnosing face diseases might be helpful. And I have them available in seven languages for you. Here we see some of the guppies that are wasting away. You can see it that one in the back there on the bottom. Most of them are still pretty good, but you see a few in between this bunch of guppies which seem to be very hungry. But some are not that well in your. Some are getting skinny, wasting away and also losing appetite. And then finally they going to rest on the bottom and they die eventually. And then we took well from the guilds an examination and we found all those tiny parasites. You can see them there, the costas. Here we go to a higher magnification and then you will see it more clearly. Those little tiny transparent parasites which cause gill damage, cause extra mucus. So the fish will have respiratory problems. At the same time we found that there was a bacterial infection internally. You see there the spleen, here we see the liver with those spots inside the melanomicrofar centers which is a reaction on a bacterial infection. That the same for the spleen. So again this is a case of a parasitic and a bacterial infection. And here we see a picture of the kidney also with all those melanomacrophage centers causing bad functioning of the organ. So the parasites are the main causing of the disease and also making serious damage to the fish. The bacterial infection is usually secondary, but it is the major cause of mortality. Treat against the parasite. You can use FMC or a similar medication. Ask in your pet shop. They have certainly good products available. And try to combine that with an antibacterial medication. Because the gills are also damaged and the fish have internal bacterial problems. And at the same time you can help with a functional fish. Wood like to Dr. Basler buy a fish food. Grapefruit seed, moringa or pumpkin. So my books can help you try to get the books if you don't have them yet. The link is below or get your training at my Patreon Channel and you become a more advanced expert. So I hope this case on this diseased guppy helps you to understand the importance of a good diagnosis and an adequate treatment. Thank you for watching.