I've had 2 red eared water turtles for about 3 months now. Bob is very active and eats all the food; Joe is extremely lethargic and disinterested. What to do?
When you have 2 turtles and one seems to be ill, it's important to see a vet to find out if there is a health problem because health problems can transfer from one animal to another, and instead of one sick turtle, you could end up with two sick turtles.
No one can diagnose your turtle without seeing it, so a trip to the vet is called for.