I agree with Yvonne. That is not normal and I think you have a problem there that needs immediate attention. Have you tried to carefully and gently rub the dots off? Like with a dull rounded pencil tip or something similar that won't hurt the tortoise?not yet but some have. i’m starting to feed him zoomed grassland diet and adding cuttle bone and taking him outside. truly i think his size was from me not giving him what he needed. i’m now FULLY committing to him. hopefully we will see some growth.