Aggression

[Arshis]

Surfuing the web and looking up many types of fish and learning as much as I can. I noticed alot of sites say Jack Dempsey is a "highly aggressive" fish. But though fourms I've heard people say their jacks are semi aggressive or even push overs.

Do fishs aggression change over time /age. or prehaps its a parsonality thing? A fight of teritory / food??

I have 2 Jack's in my tank both fairly small and defiently not the largest in the tank and they are hardly aggressive to any of the fish in the tank.

 

[Arshis]

Anyone any ideas??

 

[Toirtis]

Most Jacks (hence their name) are quite aggressive.....but there are occasional exceptions....and some of those one day just decide to become murderous.