Pictures of my Premium Rock

These are pictures of the "premium" grade live rock that I received from Tropico Reeflife on October 27, 1995. The pictures were taken the next day (after the dust settled). Open your favorite aquarium magazine to Tropico Reeflife's advertisement, and decide for yourself how the quality of my rock compares with the rock pictured in their ad.

Overview of the whole tank. These photographs were taken with the pumps off. With the pumps off, the water line is rather low. That's to prevent the tank's overflowing when the surge device goes off. Curious about my lighting fixture?
The water line, with a rock sticking out the top. This is an experiment. The action of the surge device changes the water level in the tank by about two inches every 45 seconds. At the low water level, the top one inch of this rock is exposed to air. At the high water level, it's completely submerged. What will grow on it?
A large branching sponge. This sponge was shipped to me with the rock, as a sort of bonus I suppose, but it was not attached to a rock. In these pictures, I had it stuck in the sand. I've since decided that burying the bottom may kill it. I would appreciate any hints about the care requirements of such a sponge. Should I epoxy it to a rock?
The same sponge from a slightly different angle.
Brown encrusting sponge.
Christmas tree worms and unidentified white translucent "teeth."
Brown and orange encrusting sponge.
Christmas tree worms.
More Christmas tree worms.
More sponges.
Orange and brown sponges.
A low cave created by stacking rocks.
Encrusting coralline algae and Halimeda algae.
Christmas tree worm, empty scallop(?) shell, and brown sponge.
Unidentified white gelatenous "teeth."
Sponge and some coralline algae.
Sponge, viewed from above.
Christmas tree worms and the unidentified translucent white teeth, viewed from above.
Christmas tree worms.
Most of the tank, viewed from the front at an angle.
Christmas tree worms.