I picked up a Hippo Tang from Ankur last week and I've had the fish in a separate tank for the past week with some other fish from Ankur's tank. This guy is a beast and feeds voraciously. This will easily be the largest fish in my 210 when I move them over, at over 5" long. It is a very aggressive eater at feeding time. My concern is that it may harass the small Chevron Tang when I move it to the 210. I also have a nice sized Yellow Tang that I need to move from my 55G to the new 210 as well. The Yellow will be slightly smaller than the Hippo and has been a peaceful fish in my 70G for the past year. I am looking for advice on how best to introduce these in to the 210. They are coming from two different tanks now, and I am thinking it would be best to introduce them together after lights are out in the 210. There is plenty of live rock and caves for retreat and hiding. I chose the Hippo and the Yellow because they are supposed to get along with the Chevron but this guy is so much smaller and docile that I am really reluctant to introduce the new tangs to the tank. Guess I am just looking for some advice and experiences. thanks, bob