Ive noticed over the past couple of weeks that my turtle Chuck a red eared slider who is about 1 year and 8 months old has been sleeping during the day as well as at night. Im not sure what the problem is as I have a heater, two filters and a water pump for good water circulation and filtration as well as keeping the water a consistent temperature which is usually around 80 degrees. He basks now and then for at least an hour or more per day and his appetite hasn't changed he still eats pretty good. He poops regularly and his shell and skin seem to all be in good condition. I inspect him every time I take him out of the tank since I feed him in a separate tank. Everything seems to be normal with him, I am just worried because it seems to me like he sleeps more than he should. Any one have any ideas or pointers or possible solutions to this issue?
Also I regularly check the chemical levels in the tank to make sure they are safe as well as do water changes when necessary