Legomypleco;3297406; said:all depends on your jags personality. you will have to do some trial and error. i got a 12-13 inch male jag with a 12-13'' blackbelt, 11'' synspilum, 8'' argentea. and a large pleco in a 180g. My jag just swims around and sheriffs the tank but never beats up on any fish. guess i got a mellow one.
I have a 7" Jag that does fine with a 7" JD and a 4.5" Salvini (If anything, the Sal picks on the Jag), in a 100gal. I have a calm one too. I had an oscar in there that was about 10", the Jag picked on it occasionally but was put in its place fairly quickly.

