He will sit on his basking spot with his head sticking up in the air and eyes closed. He will repeatedly open his mouth, as if he is yawning. Every now and then he will let out a fairly loud squeaking noise when he opens. He also makes this squeaking noise when he's in the water and a bunch of air bubbles come up. One of my turtles does this alot and the other doesnt. He hasnt always done it, it just started about 2 weeks ago. They are half dollar size, in a 15 gallon (just for now). The temp of the water is at 75-76. It has a filter, is filled 2/3 of the way up with water. They are eating reptomin sticks and mealworms with an occasional piece of lettuce thrown in that they dont seem to care for. I change the water twice a month. I thought maybe all of this info would help tell if my turtle is sick or not. Thanks for the help.

