How about a smoke stack or two rising up from the the sand
it could also double as your overflow!
If your putting in an anchor, better to affix a divers line and a little red bouy and flag on the surface
which could also double as a float valve for you 500gl surge bucket!
If I had a tank that big, I would pull in a few yards of white sand, a few lounge chairs and a whole whack of Corona's, what a commerical that would make
