Its 10" and cant move its tail fins or its tail past the bent part. It still paddles its other 4 fins but occasionally twiches. It used to eat lots, now much less. It must have darted into the glass while I was at work. It has been doing that lately and has even jumped out of the tank once. Oh, this happened about a week ago, I gave it some time to see if there would be an improvement, but it still seems to function at 1/3 its usual activity. I dont know what to do cuz it can still swim (although very labored) and it still eats (although much less).