Been a rough road regarding Dorado the last month or so.
Robert wasn't having another Dorado in his tank. He beat up the new Brassy pretty bad and showed no signs of stopping.
So...... I added the Franky. Just like I hoped the Brassys teamed up. The Franky was cowering in the floating plants after the first week. Seemed during this time aggression between the Brassys died off. I then removed the Franky, but scared that they would go right back to their old ways I introduced a peacekeeper - a big clown knife (almost 2').
Has been several weeks since and the new Brassy is almost entirely healed up and they seem to be playing nice, at least they aren't removing scales and tearing fins anymore. Let's just hope it stays this way........
I've NEVER gotten 2 Frankies to live together without aggression (missing scales, torn fins). So I'm going to go ahead and lean towards Brassy's being more tank mate tolerant then Frankies based on the fact that Robert lives in harmony with his tank mates, when the Franky caused problems, the fact that 2 Brassys are swimming in there together without messing with tank mates kind of reinforces that in my eyes.