Hello all! So I have a brand new RBTA from a friend, who recently had his split. Over all it seems good to me, but what about what appears to be his mouth in this photo? Should I be concerned? It has only been in my tank since last Saturday . It was hanging upside down under some live rock but today is it’s first day out and about.
![IMG_6672.jpeg IMG_6672.jpeg](https://www.reef2reef.com/data/attachments/3429/3429591-92077679408e68302874c5124e1e2708.jpg)
![IMG_6672.jpeg IMG_6672.jpeg](https://www.reef2reef.com/data/attachments/3429/3429591-92077679408e68302874c5124e1e2708.jpg)