I think if you get a F0 green terror they are much more aggressive. Mine is the most aggressive in my tank, but doesn't have any of the hyper-aggressive cichlids to stand up to him. A convict and JD. I think the F0 has the red tipped fins. Mine has an off orange color. I donno if it will turn out white tipped or orange. Still a great fish IMO.
I had 3 oscars in a 100 gal tank and fed em beefheart, pellets, feeders, flake. I think another large part of keeping them from gettin HITH is diet. You need a varied diet to keep em healthy as well as a good WC regimine. JME when i kept mine. I grew them from 2" to about 10". They moved 3 times with me and didn't get a disease once. I had em for about 2 years and finally had to sell em. Man i miss those guys
I had 3 oscars in a 100 gal tank and fed em beefheart, pellets, feeders, flake. I think another large part of keeping them from gettin HITH is diet. You need a varied diet to keep em healthy as well as a good WC regimine. JME when i kept mine. I grew them from 2" to about 10". They moved 3 times with me and didn't get a disease once. I had em for about 2 years and finally had to sell em. Man i miss those guys