MarcoRocks Shelf-Scape 25 KitAll in one kit ready to go. An ideal mix of Premium Shelf, Foundation Rock, and Risers to create the perfect Aquascape for 20 to 35 gallon aquariums. 25 pound box. MarcoRocks rock is a "green" sustainable product. Because it is not harvested from a marine environment, it has no negative impact on our delicate reef or marine ecosystem. Combine this with our unique no chemical cleaning and processing and you get great looking, pest free rock that's also
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