Tangs!

+1 Biff

I've got a yellow tang along with 3 other fish in my 58...I think you'll be ok with most any Tang especially if it's the only fish in the tank
 
I thought Tangs (some) require 6' or more for swimming or they get stressed as they get mature?

I haven't read that yet, but hey, I'm learning stuff on this site all the time :Cheers:

Then again, if my tank is 3' wide and my LR is Structured like an island in the middle of the tank, and my Tang likes to swim around it in circles, then technically he does have 6 circular feet in which to swim :scratchch:
 
A tang is a swimmer and the longer the tank the better. I have a 6 ft tank but I do believe you can get away in a 120. You should be OK.
 
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