I have this tank right now. I removed the plant cube in the middle, and added two pagodas (asian temples) and some plants behind it. The top cube is a filter+light, and also has a little spot for a decoration of some sort. I want to add a decoration at the top, right now I don't have anything on top of the filter. I could either fill it with large pebbles and put a bamboo on it [font=Tahoma, Verdana, Arial, sans-serif]or buy one of these mountain decorations that'll sit on top of the filter. Which one looks the best?[/font]