Answer: I would use old tires or rubber cause rubber is a strong material and u can use it in many situations by the way the explanation i got it off the internet so yeah ...
Explanation: Artificial reefs can be built in a number of different methods. Many reefs are built by deploying existing materials in order to create a reef. This can be done by sinking oil rigs (through the Rigs-to-Reefs program), scuttling ships (such as the USS Oriskany), or by deploying rubble, tires, or construction debris.
