Hello, I know this is a Betta forum but there is very little information online about ADF's and I'm hoping someone on here might have experience. I have a female ADF living in a heated 2.5 gallon tank alone. She was fine yesterday but this morning I noticed her back foot(?) is messed up. Basically one toe(?) in the middle of her foot is large and swollen and bright pink! Now she's lost the tiny nails on her toes before but this looks like it's very painful.
Does anyone know what I can do for her?