I have a 100G tank which had a Texas in it, a Green Severum, and a small salvini. They all got along great until one day I found an awesome male salvini at a LFS, about 6-7 inches, for 15 bucks. Well I had to get him so now he bullies everyone including the small salvini (which I think is a male also) What can I do to curb this aggression. Ive changed the decor, the only other thing I can think of is that the small salvini could be female, and I may need to remove it, any thoughts?