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CaribSea South Seas Shelf Rock 18.1kg is premium dry reef rock made from natural fossilized aragonite, designed to help you build expansive reef ledges and dramatic shelf structures in marine and saltwater aquariums. Its sturdy, flat profiles and natural textures create stable aquascapes, provide ample surface area for corals, and promote strong water flow for biological filtration.
Natural fossilized aragonite dry rock
Broad ledges and shelfstyle shapes
Highly porous for beneficial bacteria colonisation
Ideal for reef and marine aquarium aquascapes
Pestfree and ready to use
Provides stable base for ledges, caves, and coral platforms
Enhances biological filtration and water quality
Offers extensive surface area for coral placement
Creates natural, eyecatching reef structures
Safe, clean start with no unwanted hitchhikers
Rinse rock pieces with clean water before use
Arrange into stable shelf and ledge formations
Leave space for water flow through porous rockwork
Slowly fill aquarium to avoid dislodging structures
Start filtration and allow the system to cycle
Monitor water parameters before adding livestock