I have a 65 g. with a fast growing male Jack, 2 Salvini male, n ,female paired, and about 4 mixed convicts. The thing I'm wondering is, will the jd ever take over the tank? I've had a jd before and he was a badass, but this is the first one I've had from juvi(about 1") now he's pushin the 6" mark. The salvini pair pretty much rule things in the tank but are not bully's by any means. I'm wondering, if when the jack is pushin the 10" mark could he overthrow the also 6" male sal, and his honey, or can salvini pretty much hold their own even at a smaller size?