---
product_id: 57353805
title: "CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks"
brand: "carib sea"
price: "€ 273.82"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/57353805-caribsea-liferock-shapes-20-lbs-natural-aragonite-rock-for-aquascaping
store_origin: HR
region: Croatia
---

# 20 lbs natural aragonite rock Speeds up tank cycling time Porous structure for bio-filtration CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks

**Brand:** carib sea
**Price:** € 273.82
**Availability:** ✅ In Stock

## Summary

> 🪸 Elevate your reef game with LifeRock — where science meets stunning aquascapes.

## Quick Answers

- **What is this?** CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks by carib sea
- **How much does it cost?** € 273.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/57353805-caribsea-liferock-shapes-20-lbs-natural-aragonite-rock-for-aquascaping)

## Best For

- carib sea enthusiasts

## Why This Product

- Trusted carib sea brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **pH-Stable & Safe:** Maintains perfect water chemistry so your corals and fish thrive without compromise.
- • **Bio-Boosted Filtration:** Porous design supports beneficial bacteria, stabilizing your tank’s ecosystem effortlessly.
- • **Fast-Track Tank Cycling:** Infused with ammonia reducers to get your marine environment balanced in record time.
- • **Natural Aragonite Powerhouse:** Authentic textures create stunning reefscapes that impress every guest.
- • **Limitless Aquascaping Freedom:** Build reefs, caves, and ledges with no adhesives—your creativity, unleashed.

## Overview

CaribSea LifeRock Shapes is a 20-pound natural aragonite rock designed for marine and reef tanks. Its porous structure enhances biological filtration and supports coral growth while maintaining stable pH levels. Infused with biological enhancers, it accelerates tank cycling, enabling faster establishment of a balanced aquatic environment. Ideal for custom aquascaping, it allows reef-building without adhesives, making it a must-have for serious marine aquarium enthusiasts.

## Description

Full description not available

## 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 doesn’t 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Carib Sea |
| Specific Uses For Product | Indoor |
| Material | Plastic |
| Compatible Material | Aragonite-bearing Rock, Artificial Coralline Algae |
| Item Form | Pellet |
| Special Feature | Rock |
| Color | No Color |
| Item Package Quantity | 1 |
| Package Information | Bag |
| Item Volume | 20 Liters |
| Water Resistance Level | Waterproof |
| Unit Count | 320.0 Ounce |
| UPC | 008479003812 |
| Number of Pieces | 4 |
| Global Trade Identification Number | 00008479003812 |
| Manufacturer | CARIBSEA INC |
| Item Package Dimensions L x W x H | 20.3 x 15 x 13.3 inches |
| Package Weight | 10.66 Kilograms |
| Item Dimensions  LxWxH | 3.25 x 5.75 x 7.5 inches |
| Item Weight | 20 Pounds |
| Brand Name | Carib Sea |
| Warranty Description | Warranty |
| Model Name | ….. |
| Suggested Users | Unisex-Adult |
| Number of Items | 1 |
| Part Number | 381 |
| Included Components | …… |
| Size | No Size |
| Target Species | Fish |

## Product Details

- **Brand:** Carib Sea
- **Specific Uses For Product:** Indoor
- **Material:** Plastic
- **Compatible Material:** Aragonite-bearing Rock, Artificial Coralline Algae
- **Item Form:** Pellet

## Images

![CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks - Image 1](https://m.media-amazon.com/images/I/71DHPeFUi-L.jpg)
![CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks - Image 2](https://m.media-amazon.com/images/I/91L7+z9q5YL.jpg)
![CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks - Image 3](https://m.media-amazon.com/images/I/911hAh-0qEL.jpg)
![CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks - Image 4](https://m.media-amazon.com/images/I/91xsuWMtglL.jpg)
![CaribSea LifeRock Shapes - 20 lbs - Natural Aragonite Rock for Aquascaping, Supports Coral Growth & Tank Stability for Marine & Reef Tanks - Image 5](https://m.media-amazon.com/images/I/91i2uLzM0HL.jpg)

## Questions & Answers

**Q: How many pieces and shapes do you get?**
A: I would say we got maybe 8-10  pieces/20lb box. They are a good size though. It is really neat stuff!

**Q: Is this rock painted?**
A: Yes!!!

**Q: Can it be used in a fresh water aquarium?**
A: Calcium rocks like sea shells in fresh water will leach out calcium and slowly dissolve.  Will make you water turn to hard water over time.  I would get plastic version if you like the reef rock style.

**Q: Does this need to be rinsed and soaked in R/O water before putting in tank?**
A: It should be rinsed, the purpose of buying this rock is to *not* soak it.  The coatings on it are meant to soak into the water in the tank to accelerate the adoption of new water to mature it quicker.  I have built 3 aquariums with it, and it goes well, but I have had to black them out twice to kill off algae blooms.  Bare rock is better if you intend to control all aspects of the maturity.  This is a good product imho.

## Frequently Bought Together

- CARIBSEA INC Life Rock Shapes Natural Corral 20 LB
- CaribSea Arag-Alive 20 lb Fiji Pink Sand
- Caribsea Life Rock, 40-Pound

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-02*