Figure 8 puffer fish sharpening teeth?

[kalexa]

Do not really know how to explain this. Recently noticed my puffer fish pressing its face against the glass panel and drag downwards.

It exposes its break and what look like teeth underneath. Is it filing its break or trying to make funny faces?

Thanks for all help/information given..

[bryan]

What have you been feeding it? My guess is its trying to grind off some excess beak.

Feed it some snails, clam or mussel.

[tonicwater]

My puffers used to do that also frequently. Other then that didn't notice anything wrong with them.

[Jungle-mania]

Go with Bryan's idea, that was what I did too.

[kalexa]

thanks for the replies.. i put prawns in the tanks for it to hunt and eat. No more sharpening of beak for now already..