There has to be something cool I could use this for?

[Jaws]

Came across this at my office today. Looked too cool to throw out. Just trying to figure out the best use for it. All the little boxes inside are removable so I could either take them out or drill them to allow water to pass through them. I thought about maybe a breeding setup for shrimp or pods to help feed the tank. The tank is a 400G display, 700G total water volume. What would you guys use this for?