Jag and Oscar?

[Ficious]

try using tall plants to seperate territory. i know its hard to do that in a 150 gallon but imagine the tank having an almost impassable barrier made of rocks/pots/plastic plants, or w/e you can think of dividing two sides.

if the jag pairs up...try using a large pot facing to one side of the tank, so the jags will not be facing the other side of the tank

 

[n-e-w-land]

Thanks very much for your comments guys. I have noticed the Gt attacking the JD and the O in the 60 already so will think about rehoming the Gt or the Oscar. The JD and Oscar get along fine and the 60 is bowfronted, 13 inchs at the ends and very quickly widening to 16 inches and then 20 in the middle so I think it could just support my oscar. Not all Oscars reach the mighty 14 inch mark many get to 10 or 12 and even in a huge tank.