Hey guys hoping you could help me out with giving me some reccomendations for adding a fish to my tank. I have a 6 foot long 150g that is currently home to a 10" Oscar, 9" Lima Shovelnose, 8" Tire Track eel and 5" Green Terror. There is also a 4" Firemouth but he is out of the tank right now because he cross bred with a beautiful male convict I had. I am looking to add maybe one more fish but the oscar is really a bit of a pushover a convict half his size would pick on him,so im looking for something a little less aggresive. I do like jags but that may overstock me and he will probably kill the oscar. Any ideas would be greatly appreciated.