Butterfly + Scopas = Murder scene ?

[Katze]

Hello everyone!

I have to break down my smaller 200l system, and only 2 fishies (scopas and a damselfish) have to be moved to my newer, larger system.
My only concern is the longnose being bullied by the scopas, since tangs are well known to bully conspecifics and similar fishies, the butterflyfish is incredibly peaceful in fact my clownfish sometimes pushes them away from their territory, I like both fish but if I had to choose I'd save the longnose rather than the tang.
So would my tank become a murder scene in a few days if I added the tang?
What would you suggest to prevent such scenarios?

 

[RockBox13]

What size is your Scopas compared to the Butterfly? If the butterfly is larger, then it’s more likely they will get along. Has the Scopas been aggressive with any other tankmates?

 

[Katze]

What size is your Scopas compared to the Butterfly? If the butterfly is larger, then it’s more likely they will get along. Has the Scopas been aggressive with any other tankmates?

The scopas is unfortunately larger. No past aggression as far as I can remember, except my hand they like to hit it with their tail if I get into the tank and I'm afraid of being cut.