Posted: Mon Mar 13, 2006 8:57 pm
No other symptoms? You said the turtle is eating well... What is the water temp and basking area temp?
Tilting to the side in the water is often a sign of respiratory infection, and since you indicated this is recent, it very well could be the early stage of one. I'd increase the water temp to about 82F and the basking area temp 10 degrees higher. If it is an infection, the added warmth will boost the immune system and help him fight it.
If there are no other symptoms, his behavior could possibly indicate gas, but it would be good to know more about your set-up as well as any other unusual behavior if you notice it...
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-