I've actually considered both firefish and wrasses in the past. There are indeed a number of really beautiful wrasses that seem to be readily available.
My only concern with both fish is their ability bu nature to jump.
My tank is open top with my tek light about 6 inches above the top of the eurobrace. Chances are that they would jump, hit the light, get deep fried Kentucky Fried Chicken style and then drop back in the tank
(My sixline jumped from my tank when I had MH over it and ended up on the floor, I was close by and got him back into the tank and performed fish CPR.. he survived but has been mentally retarded since:P)
On rimmed tanks I had in the past I used eggcrate about the tank but have yet to find an effective or somewhat attractive cover to a eurobraced tank
