---
product_id: 29908746
title: "Carib Sea Arag-Alive Natural Reef Aquarium Gravel 16 lbs."
brand: "carib sea"
price: "₩199003"
currency: KRW
in_stock: false
reviews_count: 8
url: https://www.desertcart.kr/products/29908746-carib-sea-arag-alive-natural-reef-aquarium-gravel-16-lbs
store_origin: KR
region: South Korea
---

# Durable substrate ideal for burrowing critters Engineered bacteria suppress new tank syndrome Maintains stable pH 8.2 naturally Carib Sea Arag-Alive Natural Reef Aquarium Gravel 16 lbs.

**Brand:** carib sea
**Price:** ₩199003
**Availability:** ❌ Out of Stock

## Summary

> 🌊 Elevate your reef game with nature’s ultimate substrate!

## Quick Answers

- **What is this?** Carib Sea Arag-Alive Natural Reef Aquarium Gravel 16 lbs. by carib sea
- **How much does it cost?** ₩199003 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/29908746-carib-sea-arag-alive-natural-reef-aquarium-gravel-16-lbs)

## 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 Perfect Balance:** Buffers aquarium water to maintain an optimal pH of 8.2 without chemical additives.
- • **Built for Burrowers:** Crushed coral mix supports natural behaviors of pistol shrimp, gobies, and jawfish.
- • **Algae Control Advantage:** Naturally discourages nuisance algae, keeping your reef pristine and vibrant.
- • **Bio-Active Reef Foundation:** Specially engineered bacteria promote coral growth and tank health from day one.
- • **Long-Lasting & Low Maintenance:** Never needs replacement, ensuring a hassle-free, thriving reef environment.

## Overview

Carib Sea Arag-Alive Natural Reef Aquarium Gravel is a biologically complete, mineral-rich substrate designed to foster coral growth and maintain stable water chemistry. Featuring specially engineered bacteria, it suppresses new tank syndrome and discourages nuisance algae, while its durable crushed coral blend supports burrowing marine life. This 16 lb gravel bag offers a natural reef look and long-lasting performance without the need for replacement, making it a top choice for saltwater aquarium enthusiasts.

## Description

Biologically and mineralogically complete sand substrate for saltwater aquariums. Contains specially engineered bacteria to suppress ";new tank syndrome";. Discourages nuisance algae. Never needs replacement.

Review: Excellent for saltwater aquariums. - Great product with 2 years left before expiration. Did take a day or so for water to clear but that would be normal. Thanks!
Review: Quite Natural - Natural Reef - It's called Natural Reef and it is just that; a very natural looking reef substrate with a wide variety of grain sizes. It's awesome for your burrowing critters like Jawfish and Pistol Shrimp / Goby Pairs. I've used all of the popular Carisea reef tank substrates and this is my favorite for my higher flow SPS tank as it doesn't blow around too much and my pistol shrimp can make great burrows with the crushed coral pieces in the mix.

## Features

- Aids in the growth of corals
- Buffers for the life of the aquarium
- Helps maintain a proper pH of 8.2 without constant chemical additions
- Discourages nuisance algae growth

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C5H0CI6 |
| ASIN  | B00C5H0CI6 |
| Best Sellers Rank | #101,181 in Pet Supplies ( See Top 100 in Pet Supplies ) #95 in Aquarium Sand |
| Brand Name | Carib Sea |
| Breed Recommendation | All Breed Sizes |
| Color | coral |
| Customer Reviews | 4.4 4.4 out of 5 stars (50) |
| Date First Available | April 2, 2013 |
| Date First Available  | April 2, 2013 |
| Department | Gravel & Substrates |
| Department  | Gravel & Substrates |
| Directions | Rinse the gravel in water before adding it to the aquarium. |
| Item Dimensions LxWxH | 2 x 13 x 20 inches |
| Item Package Dimensions L x W x H | 17.6 x 11.22 x 3.31 inches |
| Item Weight | 15.58 pounds |
| Manufacturer | CaribSea |
| Manufacturer  | CaribSea |
| Manufacturer recommended age  | 1 month and up |
| Number of Items | 1 |
| Product Dimensions  | 2 x 13 x 20 inches; 15.61 Pounds |
| Size | 16 LBS |
| Style | Classic |
| Target Audience Keyword | Fish |

## Product Details

- **Brand:** Carib Sea
- **Liquid Volume:** 16 Liters
- **Item Form:** Gravel
- **Target Species:** Macaw
- **Manufacturer:** CaribSea

## Images

![Carib Sea Arag-Alive Natural Reef Aquarium Gravel 16 lbs. - Image 1](https://m.media-amazon.com/images/I/41Z+FRp0gCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent for saltwater aquariums.
*by A***N on February 13, 2024*

Great product with 2 years left before expiration. Did take a day or so for water to clear but that would be normal. Thanks!

### ⭐⭐⭐⭐⭐ Quite Natural - Natural Reef
*by J***L on November 16, 2019*

It's called Natural Reef and it is just that; a very natural looking reef substrate with a wide variety of grain sizes. It's awesome for your burrowing critters like Jawfish and Pistol Shrimp / Goby Pairs. I've used all of the popular Carisea reef tank substrates and this is my favorite for my higher flow SPS tank as it doesn't blow around too much and my pistol shrimp can make great burrows with the crushed coral pieces in the mix.

### ⭐⭐⭐⭐⭐ Excellent product
*by A***R on July 11, 2021*

As described, will buy again

## Frequently Bought Together

- Carib Sea Arag-Alive Natural Reef Aquarium Gravel 16 lbs.
- CaribSea Arag-Alive 20 lb Fiji Pink Sand
- Instant Ocean Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-24*