@Tom @zovick , what do you think should be done at this point for the tortoise? And don't you see the pyramids? It seems to be there, and I think that it could be stopped if the conditions that are causing it are corrected now, in addition to the filing down of the shell where it's cutting...
Yes, it's not amusing, and I think anyone who finds it funny should not be keeping tortoises. This demonstrates the actual physical contact fighting, but the constant silent oppression and crowding dominance is so often mistaken for "cuddling".
What tests are they planning to give him that will cost that enormous amount of money??!! Sounds like this is going to work out just fine for only one individual -- the vet!!! Familiar with this kind of situation. So disgusting.
Keep him quarantined. I hope you know a good tortoise vet who is experienced with them and can properly advise and prescribe for him. Please keep us updated! Good luck.
I don't think they need anything to sit on and bask. Their normal substrate will do, like regular orchid bark. I would use the slate or tile for feeding on.