two perculas behavior?

[trigger reid]

i have two percula clown and juring feeding time(i have never saw this before) one bent itself and turned sideways and the other bent itself two then they both hit each other on the mouths then after that they were fine again and swam together.
do you have any idea what this behavior could be?

 

[toddpolish]

that is weird

 

[trigger reid]

yah and they get along fine all the time

 

[cprdnick]

could be a type of fighting for one piece of food

 

[mgstl03]

I have 2 also that I've had for about 3 months. They came as a pair and just started doing the same thing.

 

[trigger reid]

and they also vibrate

 

[freeride7]

mine do that all the time feeding or no feeding. They will swim fast at each other, stop.....get sideways, vibrate, then keep on swimming. they don't scrap.....unless this is how they fight?