How aggressive are male jag's??

[Clslogic]

mine is pretty passive until it comes to my festae

 

[EdCal]

I had a jag so mean that killed all his tankmates...even the pleco that was bigger then him. Some say they can be passive, I gotta see one to believe it hehe

 

[Snake_Eyes]

I've only tried keeping an oscar with mine when they were both around the 7". Within a week the jag controlled the entire 125g tank and the oscar couldn't even move without getting attacked, I haven't tried keeping another fish with him since.

 

[zorba4884]

My male was extreamly friendly and wasnt bothered by other fish he was in at the lfs but now hes breeding nothing else can go in the tank with the pair.

 

[Deepsouth]

I have had 3 or 4 Jags over the years. I find them fairly passive, but they willl take 0 crap from other fish. My current male is tolerant of all the other fish, but doesn't like them in his space. He isn't like my red devil or trimac. Those fish will actually swim around looking for trouble.