So I added a royal gramma to the tank last night, and they're supposed to be easy fish. I couldn't find him last night, and I kind of dismissed it since they are somewhat secretive. Then when I feed the tank, I see him, and he's not looking good. The fish looks extremely stressed, and it looks like someone nipped at his back dorsal fin (the one without the spot). He ate, which is a good sign, but I'm wondering if it's just traveling stress or a bully. I'm kind of leaning towards the six-line, since I know they can be bullies. I have another fish that's in the QT ready to go into the main tank. Should I let the gramma settle in more or should I bring the other fish up to spread the aggression around? Or does someone need to go?