tang in a 70?

[DanG]

My 70 is about ready to have water dumped into it and I'm starting to think about what I want to add to the tank that I wasn't able to before because I only had a 40g.

New tank is 70g, 48x18x18.

I was thinking about a blue tang (dori), simply because I can get them so small (size of a loonie), and I really enjoy watching them grow into bigger fish.

How would one of those do in a reef tank with a maroon clown, a 1 inch foxface and 2 chromis?

There is no plan for a larger tank in the near future, so it would have to be ok in a 4 foot tank for a couple of years.

If not a blue tang, can anyone recommend another tang to go into a 70?