Greg H Posted January 28, 2022 Share Posted January 28, 2022 Has anyone ever seen this before or treated? Neon is acting totally normal but this been in like a bubble on him for a few weeks and has grown in size. Link to comment Share on other sites More sharing options...
Guppysnail Posted January 28, 2022 Share Posted January 28, 2022 My eyes are not great so I can’t clearly see anything but a white line. Here is some info maybe you can at least rule these out and perhaps your eyes are better than mine. https://edis.ifas.ufl.edu/publication/FA185 Grabbed some net pictures as well for you Link to comment Share on other sites More sharing options...
jwcarlson Posted January 28, 2022 Share Posted January 28, 2022 Minor quibble, but that's a cardinal tetra, not a neon. And it sounds like dermocystidium. Quote In Cardinals, Dermocystidium generally manifests as one or more bubble-like skin cysts reaching 5mm in diameter, each typically having a whitish worm-like structure inside. Hence it is easily confused as a skin-parasitic worm infection — and it’s certainly fooled me a couple of times! So, if you see one or more protruding cysts on the body and/or fins of your Cardinals, each looking like a clear bubble, and some containing a white ‘worm-like’ tube inside, as you mention, then it most probably is Dermocystidium. Proof would be to burst a cyst (although I’m not suggesting you actually do this!) onto a microscope slide and look for thousands of tiny spores under high power of a microscope. These are the infective ‘zoospores’ that swim in the water in search of a new host. From: How do I treat Dermocystidium - Practical Fishkeeping Link to comment Share on other sites More sharing options...
Colu Posted January 29, 2022 Share Posted January 29, 2022 (edited) I agree looks like Dermocystidium from what I have read theirs no effective treatment Edited January 30, 2022 by Colu Link to comment Share on other sites More sharing options...
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