When science and creativity meet, the result is bound to be interesting. In his latest video, YouTube’s “The Backyard Scientist” demonstrates an awesome experiment. For that, he first needed to fill a fish tank with over 10,000 water beads, which are tiny polymer beads that expand and absorb water. Then, it was time to pour some molten aluminum into the fish tank full of water beads. The result? A beautiful, one-of-a-kind, homemade coral perfect for, oh well, a fish tank. The result is awesome, but the process of making it is pretty cool to watch as well, so take a look: