Damn he is plant food now ..He was sold as wild caught pike cichlid but does not matter now .I just wanted to show all the experts so they might get a id on what he was.
that is a channa either marulius or marulioides, its hard to tell with the faded color. Judging by the fact you said its aggressive its probably marulius. It is definitly not venezuelan, its from asia. the area of malaysia mostly. If you are in the states its ilegal and should be killed.
When u say it jumped out and is gone do u mean gone=dead or gone=cant find it? cuz if u cant find it look far from the tank cuz they can get out n slither accross the floor and hide somewhere...