Branch LifeRock Dry Live Rock

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LifeRock is infused with spored bacteria to aid in biological performance, along with millions of micro and macro passage ways CaribSea's Branch Dry Rock is perfect for the environmentally friendly aquarist.

  • Creates a mature looking reef instantly
  • 100% safe for all marine animals
  • Unique pieces
  • Environmentally friendly


CaribSea LifeRock is made of an aragonitic base rock, instead of the typical cement used by many other artificial rock creators. Every rock contains a network of micro and macro pores that intertwine within the rocks internal structure creating the perfect environment for natural nitrifying bacteria. LifeRock is manmade and does not affect our natural resources, making it the perfect option for all marine fish, invertebrates, and corals. 


Every LifeRock from CaribSea has an artificial coating and texture that mimics natural coralline algae after being in the ocean for years. Depending on the animals that you have in your aquarium, they may pick at the coating on the rocks which will not harm them at all, and over time live coralline algae will cover any spots on the rocks that may have had the coating picked off.


Branch style rocks can be tricky to aquascape but if you have some patience, beautiful structures can be created. In most cases mixing the branch rock with other types can create a very natural, open space appearance.


How many pieces are In each box?

On average 7-8 pieces are included in every box of LifeRock Branch Dry Live Rock


How big are the pieces?

Sizing can range from 12" up to 18"


Can I request specific shapes and sizes?

Unfortunately, we are unable to take requests for specific shapes and sizes for CaribSea LifeRock. 


How much rock do I need?

Knowing exactly how much Dry Live Rock you will need can be one of the hardest questions to answer since every tank and rock will be slightly different. A general guideline for dry Live Rock, we suggest 1 pound of rock per gallon of display tank volume and may vary depending on your overall goal for the aquascape. We always recommend purchasing a little extra dry rock to ensure that you will have enough to complete the aquascape you are looking for, any extra rock can always be broken up and placed in your refugium, overflows, and sump for added filtration.


What's Included?

20lbs CaribSea LifeRock Branch 


Shipping: Branch rock can be fragile. BRS makes every effort to securely pack any type of rock. However, we have no control how UPS handles it and it may break during shipping. Unfortunately, this is not covered by insurance so we are unable to replace broken pieces.

More Information
UPC 008479003843
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Product Questions

Can I add this to my tank right away or do I need to let it cure first?
Question by: marvin colon on Feb 12, 2019, 11:59 AM
Thanks for the question, Marvin!

Since this rock is not harvested directly from the ocean, you don't necessarily need to "cure" it. You can place it straight into the tank, however there will be a period of time until beneficial bacteria colonize the surfaces, which the process could reveal itself in the form of what some reefer's consider to be a "mini cycle".
Answer by: Randy on Feb 21, 2019, 12:06 PM