south gave you some good advice. its very hard to introduce two full grown oscars to eachother and not expect a beat down. if its male/male they may just fight til one dies. like south said, if its 2 females they stand a better chance.. i would try to rearrange that tank completely.. add some flowerpots (take a screwdriver and hammer and smash the backs out so they are like tunnels) add some big fake plants and break up the line of sight.
if they continue to fight you need to get rid of one, and pick something that is compatible with a full grown oscar. ive never had a jag, so i cant tell you anthing about their level of aggression. what about a large pleco, or a school of large silver dollars? something quicker than the oscar lol..
if they continue to fight you need to get rid of one, and pick something that is compatible with a full grown oscar. ive never had a jag, so i cant tell you anthing about their level of aggression. what about a large pleco, or a school of large silver dollars? something quicker than the oscar lol..

