Hi everyone. When I got my betta, I noticed his lips kinda "stuck out" a bit more than other bettas lips. I thought it looked cute In the last few days, I've noticed that his lips are sticking out more and have a white ring around it. It's never been like that before. I did a water change and tested parameters, which are all fine. Having a closer look at his lips, it almost looks a bit red/pink at the top. I tried to get a photo, but my camera wont zoom in enough. I've attached some of the best photos I got. They really only show the white ring though. Any ideas what could be making his lips like this? Thank you.