I have a 29 gal bio cube, with 15lbs of live rock, and a castle for display.

My fish include, three damsels, one VPuffer, a Watchman Gobey, and a Maroon clown with BTA. I purchsed a Blueheaded Wrasse for my tank online, and hes about 4 inches long, bigger than i had anticipated. He is swiming around like crazy through all of the holes and through the castle, but i further researched and have found different numbers for tank capacity. Should i try and find a better home for this guy at my LFS, or should he be ok to keep around for a bit? I have two power heads, and he seems to like the tank. Thanks!