So I have had many, many bettas but this guy is a new type to me and I just got him and I'm a little worried about his fins being a bit ragged. He is a rosepetal betta and I don't know what his fins should look like. My other bettas, aside from the single crown tail that I had, all had smooth, more rounded looking fins. The tank has stress coat in it. Is this maybe because he was neglected by the pet store and his fins were damaged? Should I be worried about this? Please advise.