Was thinkin about getting a Green Terror for my 125. My brother is really interested in my oscar and was considering giving it to him and picking up a GT. I just have a few questions since i am not that familiar with a GT. Is there any way to sex them as juveniles ( i know it would be hard, but does anything give it away i was really looking at the males i think they are awesome). How fast do they grow? And do they act like oscars and beg for food or just naturally swim and eat? Thanks!