there's already a sales thread in pasar malam.
no, mirror is not much use for fairy wrasses. while it will distract the alpha male, the main importance is the one being subjected to stress. so long as the alpha male is around causing trouble, the submissive one will not come out to feed.
unless the alpha male is taken out, or the alpha male decides not to chase the submissive one. even so, it will take awhile for the submissive one to re-emerge again.
it's not as easy as tangs. unlike tangs, fairy wrasses will hide when stressed, and prolong stress will cause it to hide permanently, starving the fish.
every fish is different, every genus is different. thus, each fish will require different approach.
i could just let them fight and see if it will subside, but i won't risk my expensive marjorie wrasse against a cebu pylei. marjorie is super rare and this is singapore's debut shipment for it.
so i won't take the risk
anyway, it's out and about now eating very well. so i will try to get some photos of it later.