---
product_id: 233035786
title: "CaribSea Original Life Rock Medium"
brand: "carib sea"
price: "$429"
currency: NZD
in_stock: true
reviews_count: 4
category: "Carib Sea"
url: https://www.desertcart.nz/products/233035786-caribsea-original-life-rock-medium
store_origin: NZ
region: New Zealand
---

# Natural coraline coloring Spored bacteria for aquarium cycling 4 lbs premium aragonite rock CaribSea Original Life Rock Medium

**Brand:** carib sea
**Price:** $429
**Availability:** ✅ In Stock

## Summary

> 🪸 Elevate your reef game with CaribSea’s Original Life Rock—where nature meets next-level aquarium perfection!

## Quick Answers

- **What is this?** CaribSea Original Life Rock Medium by carib sea
- **How much does it cost?** $429 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/233035786-caribsea-original-life-rock-medium)

## 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

- • **Vibrant Coraline Hues:** Authentic, natural coloring that elevates your reef’s aesthetic to Instagram-worthy levels.
- • **Pure Inland Mined Rock:** Sustainably sourced with zero aquatic impact—eco-conscious reef builders unite!
- • **Instant Aquarium Filter:** Natural aragonitic base rock actively filters water, promoting crystal-clear tanks effortlessly.
- • **Perfect Fit for Nano & Reef Tanks:** Medium size rock blends seamlessly, creating a natural reefscape that impresses every guest.
- • **Ready-to-Use with Beneficial Bacteria:** Pre-spored with live bacteria to jumpstart your aquarium’s nitrogen cycle—no waiting, just thriving.

## Overview

CaribSea Original Life Rock is a 4-pound, aragonitic base rock mined inland to ensure zero aquatic ecosystem disruption. It arrives dry but pre-spored with beneficial bacteria to accelerate aquarium cycling. Featuring natural coraline coloring, it acts as a natural biological filter, making it ideal for creating realistic, vibrant reef tanks, especially in nano setups.

## Description

Real aragonitic base rock with live spored bacteria, shipped dry.

Review: Awesome rock - I got super lucky and got a whole 4lb size rock for my nano tank, it looks great, color is very appealing
Review: nice size great color - Not sure why its called "life rock" as any life on them is dried up, it is dried rock. but its a great size, and blends in very good with my Live rock.

## Features

- Real rock mined inland with no aquatic impact
- No curing and no undesirable hitchhikers
- Realistic coraline coloring
- Natural rock acts like real live rock to filter the aquarium
- Spored bacteria to help cycle the aquarium
- Perfect for a natural looking reef tank

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Carib Sea |
| Customer Reviews | 4.3 out of 5 stars 21 Reviews |
| Item Form | Rock |
| Item Weight | 4 Pounds |
| Manufacturer | CaribSea |
| UPC | 008479113764 |

## Product Details

- **Brand:** Carib Sea
- **Item Weight:** 4 Pounds
- **Item Form:** Rock
- **Manufacturer:** CaribSea
- **UPC:** 008479113764

## Images

![CaribSea Original Life Rock Medium - Image 1](https://m.media-amazon.com/images/I/51p2K069ZYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome rock
*by J***Y on October 4, 2025*

I got super lucky and got a whole 4lb size rock for my nano tank, it looks great, color is very appealing

### ⭐⭐⭐⭐ nice size great color
*by K***Y on August 4, 2024*

Not sure why its called "life rock" as any life on them is dried up, it is dried rock. but its a great size, and blends in very good with my Live rock.

### ⭐⭐⭐⭐⭐ Rock on
*by M***D on January 14, 2025*

The live rock came today and they are two nice sized chunks. I would say bigger than a grapefruit, maybe about a cantaloupe size. Definitely great shades of purple, and will start working with them this week.

## Frequently Bought Together

- Carib Sea Original Life Rock, Medium
- CaribSea Arag-Alive 20 lb Fiji Pink Sand
- Instant Ocean Sea Salt (50 gal)_MB

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**Shop now:** [https://www.desertcart.nz/products/233035786-caribsea-original-life-rock-medium](https://www.desertcart.nz/products/233035786-caribsea-original-life-rock-medium)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-09*