i just want to share some thoughts on things that i wish this product had. i apologize if others already posted similar ideas. i could not find the time to read this entire thread.
1) moving gills
2) colored aquarium lights
3) bubbles that spread on the surface of the water from the bubble column cast a pattern of refracted shadow.
4) fishes cast shadow on the bottom surface and on each other
5) fish droppings
6) fish feeding on the droppings
7) hermit crabs
8) mantis shrimps (salt water variety with vibrant colors)
9) full 3d aquarium decorations (corals, rocks and stones)
10) water pump sound