U can trim his nails & they will continue to grow back just like our nails. If u decide to trim them, u can use regular nail clippers...just be sure to only clip the very tip/end so that u don't cut the vein. I have slate tiles in Drago's tank & it keeps his nails pretty trim so I don't have to do the nail cutting! lol
Thats a great question because my beardies nails are getting pretty long and they are really sharp. If I dont properly have him on my arm or hand then he moves his legs and scratches me pretty good. Im going to try and trim the tips tonight or file them down and Ill tell you what happens.