Gerald Bassleer presents a YouTube case report (case #249) of a Nannostomus (N. beckfordi) tetra suffering a severe, likely mixed bacterial infection causing wasting, curved body deformity, and mortality in the aquarium. He describes macroscopic signs, shows gill and high-magnification microscopic images with numerous non-motile black colonies and rod-shaped bacteria, concludes it is a massive bacterial infection, and recommends euthanasia for severely affected individuals, antibiotic treatment options, and supportive medicated foods; he also promotes his books and Patreon for further guidance.
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Hello, dear Aquarist, Today I have a video for you on a disease of a tetra, the tetra called Nanostomus, back 40, the fish wasting away. So it was presented to me as a fish doctor to do an observation, a microscopic examination to find out what was troubling this fish. What could we do as a treatment? So I collected my findings in the PowerPoint that I want to share with you. A nanostomous bag, 40 as case 249 that is suffering from a bacterial infection. I hope you like this better sound system so my voice is better for you to understand. My books on fish diseases can help you to see what diseases can occur in your tropical fish and what treatments you can apply. Here the nanostome is back 40. You see its curved body wasting away. And some of the fish were dying in the aquarium. You see the deformed body. Well, this fish was suffering for looks like a long time, so it should have been observed sooner and that you can treat more quickly. Here we see a picture of the gills. You see the bacterial infection has all those black colonies here. All those black spots are not parasites. If you go to a very high magnification, I don't use 1000. It's too complex. You have to use immersion oil, things like that. This already. I tell you, if you find these black, not moving spots and they're sitting on the tissue or on the gills or around that, you go to a high magnification, you see a bacterial infection. Here we see it in higher magnification in the video, you see the black spots. Those are all bacteria. You can see also a lot of bacteria here in the water moving as little black spots, as little stabs, many of them. It's plenty. It's loaded with bacteria that kill tissue internally. We found a massive bacterial infection. You can see all the little rods. It's rots stacks. You can. We call it rots little points. I think there may be three or four different kinds of bacteria that the tetra is suffering from. So the treatment. Well, some fish are too heavily infected, particularly this one with the curved body. Well, you better put it gently asleep. Apply an antibiotic treatment. Ask your aquarium shop or your fish doctor what would be recommendable for them, what they have available. For this case, sometimes I can recommend. In the past, I used sulfamethoxazole, sulfadiazine, sometimes oxytocin, cyclin, but particularly at the help of a fish food that helps the fish to repair, to store, like Dr. Basler, Baishi's food, grapefruit seed extract and moringa is known to help the fish during a bacterial infection. More details on fish diseases and treatments available in my books or at my Patreon Channel where I can give you different training on causes of fish diseases, carantine of fish and how to do diagnosing of fish diseases. So I hope this small video helped you to understand this bacterial infection on the tetra nanostomus. Thank you for watching.