How is Live Rock formed?

Wild Live Rock. Note the small piece of coral (Porites sp.) and other
encrusting animals and algae.
Live Rock is formed by submersing substrate (i.e. rock) in seawater for a relatively long period of time, ranging from a few months to many years.

If the substrate is placed intentionally in seawater with the purpose of harvesting it later... you get aquacultured Live Rock. If substrate and seawater came together on their own by natural processes... you get wild Live Rock.

Learn more about...

Formation of Live Rock in Nature

Live Rock Aquaculture