L25 females are very to pick out. It looks like a male to me. Non-dominate males will not have any growth on their fins. The male in the photo took over a year to figure out because it would share a cave.
If you still think it's a female and want be to be sure ship it to me on loan. If it's a male I'll know in a week. If it might be a female it might take a month or two. (Emojs didn't come thru)
God I would kill to get a pleco like these... so beautiful, but I don't even know where to get the scarlet plecos... want one so bad. I have always wanted to do a pleco only aquarium, just fill it full of different pleco