I'm not sure if it could be due to the fungus on his shell being treated right now but I've had him since Friday, he ate a bit on Sunday but has been basking almost all day. He opens his eyes if you walk up to him but seems to want to bask, water temp is 80 degrees and basking is 90. Should I just continue to leave him alone for now and let him do what he wants? When should I worry he's not eating or swimming much?