---
product_id: 29908746
title: "Carib Sea Arag-Alive Natural Reef Aquarium Gravel, 16 lbs."
brand: "carib sea"
price: "€ 297.98"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.sk/products/29908746-carib-sea-arag-alive-natural-reef-aquarium-gravel-16-lbs
store_origin: SK
region: Slovakia
---

# Buffers aquarium life long-term Engineered bacteria for tank health Maintains stable pH 8.2 Carib Sea Arag-Alive Natural Reef Aquarium Gravel, 16 lbs.

**Brand:** carib sea
**Price:** € 297.98
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Elevate your reef game with nature’s ultimate foundation!

## Quick Answers

- **What is this?** Carib Sea Arag-Alive Natural Reef Aquarium Gravel, 16 lbs. by carib sea
- **How much does it cost?** € 297.98 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/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

- • **Algae Control Power:** Discourages nuisance algae growth, keeping your reef pristine and vibrant.
- • **Bio-Active Substrate:** Harnesses specially engineered bacteria to suppress new tank syndrome and promote coral growth.
- • **pH Stability Champion:** Maintains an optimal pH of 8.2 naturally, eliminating the need for constant chemical adjustments.
- • **Natural Reef Aesthetic:** Varied grain sizes create an authentic reef look, perfect for burrowing critters like pistol shrimp and gobies.
- • **Long-Lasting & Low Maintenance:** Never needs replacement, buffering your aquarium environment for years to come.

## Overview

Carib Sea Arag-Alive is a biologically complete natural reef aquarium gravel designed to support coral growth and maintain a stable pH of 8.2. Infused with engineered bacteria, it suppresses new tank syndrome and discourages nuisance algae, providing a low-maintenance, long-lasting substrate that mimics authentic reef environments and supports burrowing marine life.

## 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 | #126,373 in Pet Supplies ( See Top 100 in Pet Supplies ) #115 in Aquarium Sand |
| Brand Name | Carib Sea |
| Breed Recommendation | All Breed Sizes |
| Color | coral |
| Customer Reviews | 4.5 4.5 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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**Shop now:** [https://www.desertcart.sk/products/29908746-carib-sea-arag-alive-natural-reef-aquarium-gravel-16-lbs](https://www.desertcart.sk/products/29908746-carib-sea-arag-alive-natural-reef-aquarium-gravel-16-lbs)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-05*