Piranha attacking glass.

[Kaspern]

Hey guys

So i noticed that my piranha is attacking the glass.
He is clearly charging the glass.
Is it some kind of warning sign ?

He looks healthy and he eats well and ain't skittish at all.


http://www.youtube.com/watch?v=eXoX37lUsx8


Diet:
Cichlid sticks
Earthworms
black mosquito larvae

 

[strollo22]

He's attacking his reflection. My puffer did this too and I had to spray paint a piece of acrylic flat black.

 

[Kaspern]

Yea i guess you are right.
Probably need a new background.

 

[strollo22]

Definitely