My melanarous wrasse was about 2 1/2 inches when I got him. He's about 5 inches now. Hoping he doesn't grow any more.
He's a very easy keeper. Eats anything and everything I offer. Does not pick on the corals or the inverts and gets along with all the fish. You need a DSB because he buries himself at night. Same spot, same time, every night.
I think I paid about $30-$40 for him.
When I first got him I thought I was going to lose him because he developed this big lump on his side, it made him all bent! I thought he was a gonner, but he survived whatever that was and has thrived.