Originally Posted by metalbetta
Has anyone else dealt with an injury like this? ?
Yeppers my male betta had a chunk of flesh missing very similiar to yours except his was atop his head, basically extended from one eye socket to the other. He got lucky he did not injure his eye! Mine most likely injured himself stalking a ghost shrimp and pounced on him only to bang his head, your female probably did same by banging her behind on an ornament or something as that's definitely not a fish bite less you have piranhas in your tank
Within 2 days my boys missing flesh showed signs of regrowth, a week later it was completely healed with a leftover scar which completely vanished in a months time.