I have a Thai one, with a statue of Buddah, a little pagoda and a bridge, and lots of silk plants.
I also have a river tank with lots of natural planting around a driftwood cave, with a sand path.
Future themes I want to try:
- Greek/Roman ruins
- betta biotype
- a garden (complete with a flowerpot, garden beds and a trowel)
- black and white (divided, black fish with white one side, white fish with black the other)
- sunken ship graveyard
- zen (white sand, black pebbles, buddah, a moss ball, a little zen rake)
My problem is I am too wedded to my planted tanks to allow much decor in them. :p Please feel free to use any of the things I posted if you like them. :)