heidigirl99 Posted January 26, 2022 Share Posted January 26, 2022 (edited) Hi all, someone please help identify what these patches on my corydoras look like. They were in a 10g tank with a betta that just died with symptoms of dropsy. Because I only had one cycled QT, I moved these 4 to my 20g fry tank, only later to realize that they had these lesions. I’ve done 2 water changes and increased the temp of the fry tank but otherwise I am at a loss. I’m so afraid this is something contagious that will kill all my babies 😞 Edited January 26, 2022 by heidigirl99 Link to comment Share on other sites More sharing options...
Fish Folk Posted January 26, 2022 Share Posted January 26, 2022 This might be columnaris. See what others say. I am not that good of an illness identifier. Whatever it is, it's an external infection. Treatment might be done with Furan, E.M. Erythromycin . . . not positive. I've heard Columnaris is gram negative. Link to comment Share on other sites More sharing options...
heidigirl99 Posted January 26, 2022 Author Share Posted January 26, 2022 Oh no… I was hoping it was not that. Any other opinions? Link to comment Share on other sites More sharing options...
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