I just threw away about 50 LBS of the black tahitian moon sand kept for about 6 months when I upgraded I went with the white.
it looks good for a while but to me its like a black car you cant keep it clean. it shows eveything. also had a problem with the sand blowing in the tank. I still have some of it embeded in the base of my colt coral that somehow got pulled into it.
if you go with the tahitian moon sand I would add a different sand that is a little more dense to help it stay in place a little better.
HTH
<Mike