I used to think he was just popping bubbles but I noticed he only strikes the surface when the light in the aquarium is off. My only guess is he wants to fight the guy on the other side. If you watch it till the end you can see how worked up he really gets.
http://youtu.be/Jrqzmtev5zE
Here's a picture of him too
Enjoy!
Sent from my iPhone using MonsterAquariaNetwork app

http://youtu.be/Jrqzmtev5zE
Here's a picture of him too
Enjoy!
Sent from my iPhone using MonsterAquariaNetwork app
