Problem with Jack Dempsey

[Zoe]

My 6yr old (+) Jack Dempsey is a little messed up. He seems to have a kink in his back and usually swims with his head downwards. He still eats well, and CAN swim upright (but it seems to be an effort).

Any ideas as to whats wrong?

[Shane Tesser]

Zoe..can you get a pic of that for us?