What are the steps to safely clean a turtle's shell?

Cleaning a turtle's shell should be done gently to avoid damaging the shell or stressing the turtle. Use a soft toothbrush or cloth and lukewarm water to gently scrub the shell. Avoid using soap or harsh chemicals, as these can harm the turtle. For stubborn dirt, a small amount of mild, reptile-safe cleaner can be used. Always rinse thoroughly and ensure the turtle is completely dry before returning it to its habitat.