I have 13 wild caught young adult Russian tortoises, 7 of them came from Petco the other 6 are imports that were either given to me or are from a dealer.I have never had a health problem with any of them. Petco has a nice guarantee with a free vet visit if needed, I have never used this so have no idea how it works. Another thing I found out is Petco has that price match thing. I have used this and saved over $90 on 3 seresto collars..