nice male. I have one thats about 3" currently and I had it since it was tiny, and I find that Severums are not aggressive per se, but they are very territorial to similarly shaped fish. Likes to be in charge of my parrots but ignores my Snooks and SB texas. I really would like to get some more severum buddies for him someday.
I had a male years ago that was really aggressive for no reason. I found that the gold ones in my experience were more aggressive than the Rotkeil I kept