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Carib Sea

CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks

  • Based on 273 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Oct 23
Order within 22 hours and 29 minutes
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Size: 20lb (Pack of 1)


Pattern Name: Shapes


Features

  • Natural Aragonite Rock: CaribSea LifeRock features realistic textures, providing a visually stunning base for marine and reef aquascaping.
  • Supports Biological Balance: The porous structure aids in natural filtration, helping maintain stable water conditions for fish and corals.
  • Reduces Cycle Time: Infused with biological enhancers and ammonia-reducing agents, LifeRock speeds up the cycling process, creating a balanced tank faster.
  • Safe for Marine Tanks: Made from pH-stable aragonite, this rock doesnt alter water chemistry, ensuring a safe and stable environment for aquatic life.
  • Ideal for Custom Aquascaping: Perfect for building reefs, caves, and ledges, LifeRock allows endless aquascaping possibilities with no adhesives required.

Description

CARIBSEA INC Life Rock Shapes Natural Corral 20 LB

Product Dimensions ‏ : ‎ 3.25 x 5.75 x 7.5 inches; 24.6 pounds


Manufacturer recommended age ‏ : ‎ 1 month and up


Item model number ‏ : ‎ 00381


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ November 2, 2017


Manufacturer ‏ : ‎ CARIBSEA INC


Best Sellers Rank: #92,753 in Pet Supplies (See Top 100 in Pet Supplies) #131 in Aquarium Décor Rocks


#131 in Aquarium Décor Rocks:


Customer Reviews: 4.0 4.0 out of 5 stars (273)


Item Weight: 24.6 pounds


Department: Unisex-Adult


Manufacturer: CARIBSEA INC


Item model number: 00381


Date First Available: November 2, 2017


Item Package Dimensions L x W x H: 20.24 x 14.96 x 12.52 inches


Item Dimensions LxWxH: 3.25 x 5.75 x 7.5 inches


Brand Name: Carib Sea


Target Audience Keyword: fish


Directions: Ready to use as packaged. No rinsing necessary.


Warranty Description: Warranty


Model Name: …..


Color: No Color


Size: 20lb (Pack of 1)


Material: Plastic


Age Range Description: All Life Stages


Number of Items: 1


Style: Caribsea


Included Components: ……


Specific Uses for Product: Indoor


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Super
Brutal
Reviewed in the United States on July 18, 2026 by Ángel j Rosado
    • Awesome product!
Love the product! It was packaged very well. Only had one small piece break off, which was not a big deal, all the other pieces where intact. I put the white spot where the piece broke off towards the back and placed the smaller piece on the sand bed. There were 4 pieces, all were gorgeous and much larger than I anticipated which worked out great in my 110 gallon tank. The coloring was perfect as well, blended in beautifully with my existing rock. Would definitely purchase again and recommend to anyone looking for rock for their tank. ... show more
Reviewed in the United States on January 29, 2020 by L. Parnass
    • Misleading and broken
In the picture, it shows branches, but I received regular shape. three of the best looking pieces were broken in half and none of them were branches. The image shown is very attractive and misleading.
Reviewed in the United States on August 21, 2026 by Adam Hemphill
    • Came packed immaculately.
As the reviews say, many other people received broken or damaged rock. These pieces were wrapped with tissue paper individually and cardboard wrapping paper. Also packed with some cardboard tissue paper. For the price these are some beautiful pieces and I look forward to using them. These were very large in size and varied in color and shape. For $120 you can’t beat it, around $6 a pound that you would probably pay for some used old rock! Description says you will receive 20lbs of rock or more. I received almost 30lbs!!! ... show more
Reviewed in the United States on August 10, 2024 by Big Dog
    • Too fragile ...
Decent looking rock, but mostly broken. You get a few unique shapes; however, it it a huge pain trying to glue them back together. It was not worth the extra money to buy the shapes package. Wish I could have given it a better rating.
Reviewed in the United States on November 13, 2018 by JH
    • Great looking However arrived broken.
Great looking dry rock but arches were all broken when it arrived. The package looked fine when I received it but upon opening the box I noticed the two major arches were broken into multiple pieces. disappointing to get something broken. Takes a long time to cycle in tank as it's not very porous so don't expect it to be plug and play. Will eventually lose some of its color. Probably would buy again and add some epoxy to the order to repair the broken pieces. ... show more
Reviewed in the United States on September 11, 2025 by Dave C.
    • Beautiful rocks
I never write a review but felt I needed to for these after reading the reviews of people receiving broken rocks. I bought the 20 lb box and received 2 arches, 1 tunnel and 1 cave. None were broken, huge pieces...I feel like I got more than I paid for. The shipping was superb!! Every rock was wrapped in both tissue and an absorbancy packaging that was wound around it at least 5 times. Plus a TON of packing paper around that. I will definitely buy again from this seller when I upgrade my tank. It's always a gamble buying this stuff online but this was definitely a win! ... show more
Reviewed in the United States on January 31, 2024 by Stephanie Michelle
    • Amazing product
Review Image by cristiano
I am very happy with this product. The arches are nice provides a ton of coral, anemone, and fish spots. One small broken piece, I honestly kinda wish there were a few more broken pieces for the filtration! lol all in all money very well spent and if I set up another tank, 100% using caribsea again!
Reviewed in the United States on November 20, 2024 by cristiano

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