today i noticed one of my bettas is holding one of his pectoral fins close to his body, like he hurt it or something , he occasionally flutters it but wont move it away from his body. nothing is visibly wrong with it, and his other fin is fine.. could he just have brushed against a rock or something and hurt it? his gravel is very rounded, but he has an ornament in his tank that isnt smooth and he zips around flaring all the time, so he might have clunked his fin on that.. should i treat him with anything or just let him be and hope his fins okay? any help would be greatly appreciated!

I would just keep an eye on it for a day or so and see how he is. These little guys are pretty resiliant and if their immune systems are healthy, they can heal themselves pretty well. Just lots of TLC

Lol 30 minutes after i posted this my bettas fin looked perfectly fine again hes trying to give me a heart attack i tell you, Lol it seems like i cant go a week without some fish looking ill or something but im just happy my betta was only practicing his one finned swimming instead of being injured lol