The best man made live rock we have ever seen, farmed in California grown out in glass houses and looking as good as the best old school deep purple fiji rock. With the collection of live rock now often damaging the environment many no longer think after 20 years this is sustainable including Cites who are steadily reducing collection quota's. Change your live rock to one thats environmentally friendly, has no predators or troublesome hitchhikers but is more bacterially rich and capable of filtration than a box of traditional rock. Oh and Real Reef Rock looks great straight out the box.