Description These large LifeRock Arches are the perfect live rock for dynamic marine aquascaping. LifeRock Arches are the ideal size for medium to large tank aquascapes. At about 18 inches long and 6-8 inches wide, these spectacular arches make the most of spaces as a coral topped archway or swim through cave. Use 2 or 3 in a stack and make beautiful, open reef structures. LifeRock Arch Features Perfect live rock for marine aquariums Reef Safe Infused with living,spored bacteria No curing, no hitchhikers LifeRock is ready to be used right out of the box
