Posted: Fri Feb 09, 2007 1:20 pm
When you say spots, do you mean on the plastron? If so, does it look like they're becoming "unfocused," and aren't as distinct as they once were? This will happen if your turtle is growing rather fast (which, from what you say, sounds like your turtle is). The outer rim of the shell will also start to have a yellow edge as the scutes underneath grow and "push" the older ones toward the edge of the shell.
The changes sound consistent with growth, particularly faster growth. How much has the turtle grown since December? What are you feeding them? How much and how often?
If the one turtle is growing that much more than the other one and you feed them together, you might want to feed them separately so the smaller one gets his share of the food.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-