Possible Genetic Defect?

[MisssMarie]

So, my male has a pinched mouth. Kinda like sunken cheeks. Been that way since I got him. For lack of a brtter compatison its like someone put a rubber band around his mouth. Not a rounded mouth but very pinched in mouth that can make it hard for him to eat. Is this a genetic defect? I can post pics tomorrow

 

[alstermania]

It could be a defect, then again if this is effecting the way your betta eats or functions it could be a health problem. I wouldn't worry about it otherwise. I've had bettas with different eye colorations, so maybe defects in bettas are common.

 

[MisssMarie]

He just has a harder time with big pellets so he gets small ones, otherwise no issues