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The CaribSea South Seas Base Rock 18.1kg is a premium natural aragonite dry rock designed for building strong, visually striking aquarium aquascapes. Formed from ancient fossilized coral, this highly porous rock provides an ideal foundation for biological filtration while creating a natural reef structure in marine or freshwater setups.
Natural aragonite rock with no artificial additives
Highly porous structure for beneficial bacteria growth
Unique shapes with holes and ledges for aquascaping
pH-buffering properties help stabilize water chemistry
Suitable for marine, reef, and hard-water freshwater tanks
Pest-free dry rock (no unwanted hitchhikers)
Provides a strong foundation for reef and aquascape structures
Supports biological filtration for a healthier aquarium
Enhances natural appearance of your tank
Safe, clean start with no pests or algae
Cost-effective alternative to live rock
Rinse the rock thoroughly with clean water
Soak the rock to remove trapped debris
(Optional) Cure or seed with bacteria or live rock
Arrange in your aquarium to create a stable structure
Fill tank and begin cycling process
Monitor water parameters before adding livestock
