Well my little jag and gold saum have finally reached the point that I am going to have to seperate them. They are both about 4 inches long in a 55. They have grown from about 1.5" to this size together with no real quarrels. Last night I found the two of them with lips locked fighting for the Jags pit. They broke it up and didn't seem too concerned with each other until a couple minutes ago. They were at it again. How long do you think I have before it turns dangerously aggressive? I have another 55 I can set up for a temporary home for the Jaguar until I can upgrade it. I have to work today, so there is no way I can keep an eye on them until I come home for lunch. Right now theres no serious injuries. I rearranged the tank and threw in another fake rock formation to try and mess with their sense of territory for a bit. My quarantine tank is occupied right now, so I can't even use it to seperate them.