it will get a fiberglass rock wall probably hiding the front so the viewing window kinda looks like it was cut out of a reef wall. then lots of fiberglass rock structure inside so it looks like the edge of a reef shelf with many levels to place corals and whatever on.probably a rock pillar out in the open water section for fish to swim around. I also want an overhang rock structure that fish can swim through and hide under. I still might put a 14th century spanish anchor in it too. like you said kuatto, the posibilities are endless, its just hard to decide which ones to go with...