Purple Life Rock - Base Rock - Per Pound - CaribSea

Build a strong, natural foundation for your reef with LifeRock Base Rock, the perfect starting point for any aquascape. Sold by the pound, this rock features rugged, irregular shapes ideal for stacking and supporting coral structures, ledges, and other decorative pieces in your saltwater aquarium.

Each piece of LifeRock Base is made from real aragonitic rock, not cement, and is infused with spored bacteria to help establish biological filtration from day one—no curing required. Its natural porosity supports beneficial nitrifying bacteria, while the realistic coralline-algae-style coating gives your reef a mature look right out of the box.

Key Features:

Sold per pound – customize the amount you need

Perfect for building the foundation of your aquascape

Infused with spored bacteria for immediate biological activity

Made from natural aragonitic base rock – not artificial or cement-based

Highly porous for optimal bacterial colonization

Coated to mimic mature coralline algae

100% reef-safe for marine fish, inverts, and corals

Environmentally responsible – not harvested from reefs or beaches

Whether you’re starting a new tank or adding stability to an existing layout, LifeRock Base Rock provides the strength, appearance, and performance to support a thriving reef ecosystem.

Rock is naturally fragile and some breakage may occur during shipping. While we inspect and securely pack each box, carrier handling is beyond our control. Shipping insurance does not cover breakage, so we cannot offer replacements.