Hi all, hope you're well. Following my trials and tribulations with bacterial illness effecting my corydoras, I'd like to get a second opinion on whether this looks to be damage or a bacterial issue. This pygmy corydoras arrived from the shop with a white patch near to her dorsal fin, and i can't work out if it's damage sustained in the shop / before, or if it's a bacterial issue. I'm debating whether to dose with Esha 2000 again. Here is "ms patch":
I've edited the first photo to reduce blur but you can see it unedited further down. It looks as though the patch is almost diamond shaped when viewed from the front (can't get a decent picture), along the lines of figure B in this image:
however, it doesn't extend all the way down to the head.
Here's a pic of my other corys for comparisons sake:
The little one in the bottom is "finless" - he lost his dorsal either due to fin rot or nipping some months ago, and it's never grown back. However, he seems pretty chipper and confident in the tank - I often see him running off the tetras and shoaling with the other Corys. Any advice appreciated 🙂
I've edited the first photo to reduce blur but you can see it unedited further down. It looks as though the patch is almost diamond shaped when viewed from the front (can't get a decent picture), along the lines of figure B in this image:
however, it doesn't extend all the way down to the head.
Here's a pic of my other corys for comparisons sake:
The little one in the bottom is "finless" - he lost his dorsal either due to fin rot or nipping some months ago, and it's never grown back. However, he seems pretty chipper and confident in the tank - I often see him running off the tetras and shoaling with the other Corys. Any advice appreciated 🙂