Turtle needs advice #2?

It might have a disease, check if it is blind by waving at it's eye, or if it's eyes are white. Check the shell for any unusual colors or rotting parts in case of shell rot disease, and if it is constantly stretching its neck and gulping air it might have a lung disease. All these diseases cause turtles to not eat. Or maybe you should just try another feed, turtles love fish, raw meat, and shrimp.