So I set up my 180gal A week or so ago and I've run into a slight problem....I put 2 jewel cichlids to make sure the tank was really cycled(all levels were in the clear) and now because I wasn't thinking they think the entire 180gal is theirs and they're starting to kill my Congo Tetras as I've lost two, and I've got Longfins coming in within the next couple of days....I've tried catching them (I've only got a 6" net) what do I do to prevent their killing spree if anything (If I add a Bichir they might eat my school of 5 Congos before I can build a good enough school)