One of the new false julii cories (corydoras trilineatus, Byron
) I got on Wednesday is missing a fin!
I added them to my tank Wednesday late afternoon. They seem to be going through an adjustment period slightly longer than my other cories did, but my tank is well set-up and I pay attention to the water condition so I'm pretty sure they'll come around.
I got home from work today to find one of them stuck to the filter input! I assumed he was dead, but noticed that he was still breathing. I unplugged the filter, and to my surprise he swam away. Unfortunately I think the filter ripped off one of his side fins. He mostly is vertical in the water now, and can't swim in a straight line when he rights himself. He is having a lot of trouble. The other 2 still seem scared, but fine.
What can I do? All his other fins are fine, there is no sign of disease, but he is missing his left fin. I feel awful. Think he'll make it? Do those fins regenerate, or is he permanently handicapped?
On closer inspection, he is also missing his front "whickers" or feelers, whatever they are called on catfish. His head looks read under the skin, making me think there might be some internal bleeding from being caught in the filter. Oh no! I put him in a QT tank, unfortunately I don't really have a real one so it's just a large tupperware container that I added an airstone to and switched my powerhead over. It's shallow, so figured he might not feel so stressed out in a smaller space.