Leopard tortoise I think.Do you have a tortoise or a turtle? The Red Ear Slider Turtle has by nature very long nails that are not trimmed.
If a tortoise it may be best to let a veterinarian do it for the first time. If permitted watch how he does it.
May we see photos as well as his set up please to clarify? (;Leopard tortoise I think.
Leopards don't usually need their nails trimmed. If its is a female leopard tortoise and we are talking about the back nails, they are supposed to be long. They use them for digging nests.Leopard tortoise I think.