just bought my first betta and he looks wicked (mainly red with pinky sides) when i first introduced him intp my tank he went around flaring up at all the other fish, i guess just introducing himself...... but as he did it his fins straightened as expected but also his gills flipped out to make his face wider. is this normal? as i have since noticed he has a small amount of red gills kind of hanging below him...... i have never seen a picture with this on it so i am asking for your opinions/ help on this. forgive me if its quite normal as its my first betta and my first tank.......
Matt.
Matt.