---
product_id: 116560362
title: "Arag-Alive Substrate Special Grade Reef Sand, 10 lb."
brand: "carib sea"
price: "¥33011"
currency: JPY
in_stock: true
reviews_count: 12
category: "Carib Sea"
url: https://www.desertcart.jp/products/116560362-arag-alive-substrate-special-grade-reef-sand-10-lb
store_origin: JP
region: Japan
---

# Cycles aquarium days faster Maintains ideal pH naturally Millions of beneficial bacteria/lb Arag-Alive Substrate Special Grade Reef Sand, 10 lb.

**Brand:** carib sea
**Price:** ¥33011
**Availability:** ✅ In Stock

## Summary

> 🌟 Transform your tank into a living reef masterpiece—faster, cleaner, and effortlessly vibrant!

## Quick Answers

- **What is this?** Arag-Alive Substrate Special Grade Reef Sand, 10 lb. by carib sea
- **How much does it cost?** ¥33011 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/116560362-arag-alive-substrate-special-grade-reef-sand-10-lb)

## 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

- • **Trusted by Experts:** Developed with public aquariums and zoological parks for authentic reef environments—join the elite reefing community.
- • **Algae Control & Clarity:** Suppresses nuisance algae growth and clears cloudy water fast, so your aquarium stays pristine and Instagram-ready.
- • **Versatile Aquatic Habitat:** Perfect for marine, freshwater, and African cichlid tanks—supporting diverse aquatic life from corals to turtles.
- • **Chemical-Free pH Stability:** Naturally maintains optimal pH levels without constant chemical adjustments—keep your reef thriving effortlessly.
- • **Instant Biological Balance:** Kickstart your tank’s nitrogen cycle with millions of engineered bacteria for rapid waste reduction.

## Overview

Carib Sea Arag-Alive Substrate Special Grade Reef Sand is a 10 lb premium aquarium substrate infused with millions of beneficial marine bacteria engineered to accelerate the nitrogen cycle and maintain stable pH levels naturally. Ideal for marine and freshwater tanks alike, it promotes biological filtration, suppresses algae, and supports diverse aquatic species, making it a top choice for reef enthusiasts and professional aquarists seeking a fast, chemical-free, and visually stunning aquarium setup.

## Description

You can now bring the world's most exotic reefs into your home with CaribSea's Arag-Alive substrates. It is developed from CaribSea's cooperation with public aquariums and zoological parks, where authenticity is a must. Arag-Alive helps maintain a proper pH for the life of your aquarium without the constant addition of chemicals and creates a biological balance to discourage nuisance algae. Arag-Alive contains millions of bacteria per pound specially engineered for aggressive waste reduction in closed systems like your aquarium. Arag-Alive is engineered to suppress "new tank syndrome" and compress the ammonia cycle. It begins to cycle your aquarium instantly. In fact, independent labs prove Arag-Alive cycles your aquarium days faster than other brands.

Review: great sand - great sand!! thank you. no need to rinse with rodi water. cloudy water will go away fast if and only if floss is used. both of the nano tank water cleared in about one day. the cloudy water is really crushed sand. the sand is crushed during packaging and shipping. no need for reef carbon, purigen and phosguard when cycling new aquarium. some people use dry sand and dry rocks to start a new saltwater aquarium. please do test the aquarium water for nitrites, nitrates and ammonia for two months. the dry rock, dry sand method will take 60 days for the aquarium to cycle. then add filter media and cleanup crew ie. snails to the saltwater tank. make sure ammonia is zero before adding fish and cleanup crew. some hobbyists use real saltwater, live rocks and live sand. add add benificial bacteria with fritz turbo start 900 will help either way. both our tanks cycled fast with live rocks, live sand and real ocean water. livestock was added a few days later. and only after testing the aquarium water to ensure the aquariums was safe for fishes and a cleanup crew. both pairs of black snowflake extreme clownfish love it in their nano tanks. we used caribsea fiji pink sand and live rocks with plenty of coralline in the two nano tanks. coralline are the purple algae on the live rocks. coralline algae comes in many colors such as pink and purple. aquarium lights such as kessil are great for live rocks and coral, however, only ambient room lights are currently used to light both aquariums. the purple coralline on the live rocks will get lighter in color and the purple and pink colors in all likelyhood will fade without aquarium lights, however, the helpful and needed bacteria will still be alive. never leave the aquarium lights on for extended periods of time. do not keep the aquarium lights on for too long a period of time. in addition, overfeeding will cause the aquarium water to be nutrient rich for green hair algae, algae and cynobacteria better known as red slime algae. all saltwater aquariums have ugly stages. some hobbyists use a uv sterilizer to help with algae and ich. patience is needed for this hobby. water tests and at least three months are needed before adding easy corals. never introduce too many fishes to an aquarium. always do weekly or biweekly water changes. always use rodi water to topoff the evaporated water in the aquarium. never use tap water for aquarium water evaporation. always go slow. and read and post questions in saltwater aquarium forums.
Review: Remember Pink Fiji - This is the best sand for reefers who enjoy reefing. (Pun intended)(o.O) This soft substrate is hardy for rocks and rockscapes but soft for my watchman gobie and pistol shrimp, my LPs corals all enjoy the soft substrate when on a rock. Conch snail and Nassarius snails can dig and burrow very well. I used this to kick start my tank nitr cycle on week 2 and my results have been stellar! Overall great tank look with quality feel when scaping. Always check water parameters! Make sure to QT fish(76day fallow) to avoid hitchhikers and free swimmers(ich) and check for parasites on Corals to not transfer to DT. Think Global. Shop Local. S4LT.TV

## Features

- May also be used in marine or African cichlid aquariums
- Contains millions of beneficial marine bacteria to enhance biological filtration
- Ideal for most freshwater aquaria, including discus, tetras, angelfish, water turtles, rays, plants, cichlids and more

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00VVBEW9W |
| ASIN  | B00VVBEW9W |
| Best Sellers Rank | #20,359 in Pet Supplies ( See Top 100 in Pet Supplies ) #15 in Aquarium Sand |
| Brand Name | Carib Sea |
| Color | wheat |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,281) |
| Date First Available | April 3, 2008 |
| Date First Available  | April 3, 2008 |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 10 x 2 x 14 inches |
| Item Package Dimensions L x W x H | 11.61 x 8.19 x 2.87 inches |
| Item Weight | 10 Pounds |
| Item model number | 01790 |
| Item model number  | 01790 |
| Manufacturer | Carib Sea |
| Manufacturer  | Carib Sea |
| Product Dimensions  | 10 x 2 x 14 inches; 10 Pounds |
| Size | 10lb (Pack of 1) |
| Target Audience Keyword | fish |

## Images

![Arag-Alive Substrate Special Grade Reef Sand, 10 lb. - Image 1](https://m.media-amazon.com/images/I/61PXQBRvCuL.jpg)

## Available Options

This product comes in different **Pattern, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ great sand
*by V***V on February 17, 2025*

great sand!! thank you. no need to rinse with rodi water. cloudy water will go away fast if and only if floss is used. both of the nano tank water cleared in about one day. the cloudy water is really crushed sand. the sand is crushed during packaging and shipping. no need for reef carbon, purigen and phosguard when cycling new aquarium. some people use dry sand and dry rocks to start a new saltwater aquarium. please do test the aquarium water for nitrites, nitrates and ammonia for two months. the dry rock, dry sand method will take 60 days for the aquarium to cycle. then add filter media and cleanup crew ie. snails to the saltwater tank. make sure ammonia is zero before adding fish and cleanup crew. some hobbyists use real saltwater, live rocks and live sand. add add benificial bacteria with fritz turbo start 900 will help either way. both our tanks cycled fast with live rocks, live sand and real ocean water. livestock was added a few days later. and only after testing the aquarium water to ensure the aquariums was safe for fishes and a cleanup crew. both pairs of black snowflake extreme clownfish love it in their nano tanks. we used caribsea fiji pink sand and live rocks with plenty of coralline in the two nano tanks. coralline are the purple algae on the live rocks. coralline algae comes in many colors such as pink and purple. aquarium lights such as kessil are great for live rocks and coral, however, only ambient room lights are currently used to light both aquariums. the purple coralline on the live rocks will get lighter in color and the purple and pink colors in all likelyhood will fade without aquarium lights, however, the helpful and needed bacteria will still be alive. never leave the aquarium lights on for extended periods of time. do not keep the aquarium lights on for too long a period of time. in addition, overfeeding will cause the aquarium water to be nutrient rich for green hair algae, algae and cynobacteria better known as red slime algae. all saltwater aquariums have ugly stages. some hobbyists use a uv sterilizer to help with algae and ich. patience is needed for this hobby. water tests and at least three months are needed before adding easy corals. never introduce too many fishes to an aquarium. always do weekly or biweekly water changes. always use rodi water to topoff the evaporated water in the aquarium. never use tap water for aquarium water evaporation. always go slow. and read and post questions in saltwater aquarium forums.

### ⭐⭐⭐⭐⭐ Remember Pink Fiji
*by A***R on November 27, 2024*

This is the best sand for reefers who enjoy reefing. (Pun intended)(o.O) This soft substrate is hardy for rocks and rockscapes but soft for my watchman gobie and pistol shrimp, my LPs corals all enjoy the soft substrate when on a rock. Conch snail and Nassarius snails can dig and burrow very well. I used this to kick start my tank nitr cycle on week 2 and my results have been stellar! Overall great tank look with quality feel when scaping. Always check water parameters! Make sure to QT fish(76day fallow) to avoid hitchhikers and free swimmers(ich) and check for parasites on Corals to not transfer to DT. Think Global. Shop Local. S4LT.TV

### ⭐⭐⭐⭐⭐ Beautiful sand Great quality!
*by J***N on June 23, 2025*

Why did you pick this product vs others?: Beautiful sand for every tank set up easy to use doesn't cloud water for long.

## Frequently Bought Together

- Carib Sea Arag-Alive Substrate Special Grade Reef Sand, 10 lb.
- Instant Ocean Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-08*