I believe my female motoro to be about 4-5 weeks in. She has definitely been getting thicker, but I don't really see the definitive "m" shape on the back yet. How long should it be until this is noticeable? My leo was after her as soon as I added her, but the female only had a couple small bite marks at her rear and one large one on the side. That large bite was the last one I have seen on her and it happened about 4-5 weeks ago.