Was going to page the experts, but I see you already did.
With an established Ruby Red, it’s not likely to allow a Flasher into the tank. You can try it however I recommend using an acclimation box for the Flasher. Melanurus shouldn’t be an issue however I would still remain cautious. They usually dislike additional Halichoeres more than additional Fairies and Flashers.
I believe you know these as “Social Fairy Wrasse” Cirrhilabrus rubriventralis. I know them as “Ruby Fin Fairy Wrasse” or “Sea Fighter Dwarf Parrot”
In my area Cirrhilabrus Rubripinnis is known as a ruby or red fin. You know Rubriventralis under that name and someone else mentioned Rubeus being known under that name lol. Common names make compatibility recommendations tough because if the OP has Rubripinnis I would not recommend a Carpenter be added.
Would make it so much easier if the OP had a photo of the Wrasse in question, common names suck. “Latin” is so much better to use IMO.
Romanes eunt domus
Since when do Romans eat donuts?
I would pass on getting a Carpenters then. Rubripinnis can be a jerk to other fairies and flashers.
You didn’t hear this from me butt… If you play your cards right you can get it to work. If you want to know how then I can tell you what I did in my 4’ tank to get a gang that shouldn’t have ever worked out.
