Actually, the "Fish Nazi" term of endearment was bestowed long ago upon me by several frequent customers. I've embraced the nickname and try my best to embody the persona when necessary.
With that said, the Fish Nazi has no issue with a barely 1.5" juvenile Ctenochaetus roaming about an ~80 gallon aquarium. At the fish's current size, a 48" x 24" surface area is of sufficient environment to comfortably keep the Species in the opinion of this friendly neighborhood fish-monger. Yes, it will grow. When it reaches a no longer appropriate size, I'm confident in Nwest's judgement to find the fish a larger home.
While the Fish Nazi embraces some/most of the tenets of the Tang Police, he is not blindly devote to absolutisms and does take into consideration many factors before the phrase "No fish for YOU!" is played.