>>41794694Algae growing on a turtle shell is normal. In fact most wild turtles have some algae growing on their carapace. That being said if you own a turtle you can’t completely ignore the algae on the shell. There is a possibility that it is hiding something due to a previous disease or infection. Sometimes algae will grow under partially shed scutes, which could cause water to accumulate and a local shell problem like shell rot may develop. This is rare.
