When you buy a fish tank, it’s usually with the intention of buying a fish as a pet. However, you might just want to change your mind after watching this video. The Backyard Scientist is really into aluminum, and a lot of his experiments involve the metal.

In this case, you’ll need a fairly deep fish tank, a whole lot of polymer beads that soak up tons of water, and molten aluminum. If you’re a normal person and don’t have a small aluminum forge lying around the garage, you can go out and buy one. This is the land of the free after all. Then, exercising safety, create awesome and unique aluminum sculptures!