Hi, My name is Jeremy. I have 2 res which is currently 3 years old. Recently 1 of the res showing some weird behavior of trying to bite (or scratch? due to no injury resulted) only his right front leg. At first was not very obvious but now very frequent. My res sometime will try to swim backward just to stretch his right front leg forward in order for himself to bite!
However his movement was not affected as swimming pattern normal. As I take the res out to check visually on his right front leg, no swelling or any abnormalities found.
Anyone encounter this before?


