If you want to see something cool check out this aquascape waterfall in an aquarium. Much like landscaping is used to help improve a home’s appearance, aquascaping is used to improve the appearance of an aquarium. The waterfalls are created using sand and from a distance, it actually appears as if it’s water flowing down into the water. It truly is an art form and if you want to learn more about it just head over to YouTube and search for aquascaping tutorial videos.