I put a male and a female green terror in my 55. the male is a white saum and the female about a half inch smaller is a gold saum. there were both added at the same time and the male has been picking at her so much i had to put her in my 75 with my 2 retic rays. so my question is if I can put another male gt in there??? another reason Im asking is that at a lfs they have a huge male, has to be at least 7 inches BEAUTIFUL, and i was thinking of adding him to the 55 with the lil bully to teach him a lesson.