You have to add the flashers at the same time or before the other wrasse. I had to remove a Melanurus Wrasse & a Whipfin fairy wrasse because they wouldn't stop harassing new additions. I only kept my leopard, then added a solarensis, a Linespot, a carpenters & a naoko all together so the leopard couldn't chase any one.
I had a McCoskers and added the Melanurus because I had a flatworm infestation, which he took care of. The McCoskers harassed the new Melanurus when I first added him. I taped a mirror on the outside of the glass to distract the McCoskers. It worked, the McCoskers was pretty busy going after that othe fish (his reflection) and after awhile both the McCoskers and the Melanurus were going after the new fish in the mirror. I took it down after 4 hours, I was afraid they would hurt themselves. They got along fine after that. The McCoskers didn't survive my last move, although it was only next door. He moved twice before just fine but didn't handle this one. I replaced him with a Red Head Salon Fairy Wrasse and the other fish went after him, I turned the lights out until the next day and now they all get along fine. My one clownfish still doesn't like him, but he doesn't like anyone, especially me, he attacks me whenever I get ready to put my hand in the water.
Use an acclimation box upon introduction for several days and you'd probably be just fine.
Not really true. The acclimation box is a wonderful tool when mixing wrasses, but it's also important you choose wisely based on aggression profiles. The whipfin is one which does not mix well, if at all, with others.
For now...
Diver's Den lists one occasionally; last one was within the last two months (I don't remember exactly when).
I still think it's not a terrible idea; not guaranteed to work, either. But it's the flasher you've got the best shot with.
There's a bit of risk with the orange back, being a bit similar in appearance to the solorensis. Add in the fact solorensis can be a bit aggressive, I'd avoid it.
