When I went to feed Gemma today, I noticed she was only swimming with one pectoral fin. Strange, because I didn't remember seeing that before.
When I checked her other side to see where her other pectoral went, I noticed she had it clamped to her body. It's a bright red colour, like blood (her other pectoral is transparent). At the end of the clamped fin, there seems to be something white, almost seems fuzzy like fungus. I couldn't tell so well because she keeps moving around!
Other than that, her behaviour is normal. She's as bouncy as ever, and ate her bloodworm happily today. Her swimming isn't hindered at all, either.
I keep her in a 3.3 gal Kritter Keeper, and the water is kept around 75-78 degrees. The heater unfortunately doesn't go up higher than that, and it's not adjustable.
I did a 50% wc and put in some salt, but does anyone know what the problem is? Just in case I should do something else.