---
product_id: 53536851
title: "Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs"
brand: "nature's ocean"
price: "€ 77.00"
currency: EUR
in_stock: false
url: https://www.desertcart.sk/products/53536851-natures-ocean-bio-activ-live-aragonite-reef-substrate-8-lbs
store_origin: SK
region: Slovakia
---

# Instant ammonia cycling Optimal grain size 1.0-2.5mm Enhanced buffering capacity Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs

**Brand:** nature's ocean
**Price:** € 77.00
**Availability:** ❌ Out of Stock

## Summary

> 🌟 Dive into instant reef perfection with Nature’s Ocean Bio-Activ Aragonite!

## Quick Answers

- **What is this?** Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs by nature's ocean
- **How much does it cost?** € 77.00 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/53536851-natures-ocean-bio-activ-live-aragonite-reef-substrate-8-lbs)

## Best For

- nature's ocean enthusiasts

## Why This Product

- Trusted nature's ocean brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready When You Are:** No cycling wait time—just add saltwater and fish to start your thriving reef immediately
- • **pH Stability Like a Pro:** Maintains ideal pH levels with superior buffering capacity for reef health 🧪
- • **Pro Tips for Peak Performance:** Use 1 lb per gallon and introduce fish gradually for guaranteed ecosystem balance
- • **Instantly Detoxify Your Aquarium:** Removes ammonia, nitrite, and reduces nitrate for a pristine aquatic environment ⚡
- • **Scientifically Sized for Success:** Premium 1.0-2.5mm grain size ensures perfect substrate flow and filtration 🌊

## Overview

Nature's Ocean Bio-Activ Live Aragonite Reef Substrate is a premium, naturally harvested sand designed to instantly cycle saltwater aquariums by removing harmful nitrogenous waste. With a precise grain size of 1.0 to 2.5 mm, it enhances filtration and maintains stable pH through superior buffering capacity. Ideal for reef tanks, it requires no waiting period before adding fish, ensuring a healthy, balanced aquatic environment from day one.

## Description

Product Description               Nature's Ocean Bio-Activ Live Aragonite Reef Substrate 8LBS (Grain size: 1.0 -2.5mm). Premium Live Aragonite Sand for Aquariums; Collected in its natural environment and packaged in its natural state (U.S. Patent #'s: 6,376,299 & 6,939,708); Just place in tank, add saltwater (for best results use Nutri-Seawater) then add fish, no waiting required; Instant ammonia cycling; Perfect for under gravel filter For Best Results Use as Follows: Use a minimum of 1 pound of Bio-Activ Live Aragonite per gallon of saltwater. Setup filtering system and allow it to circulate. During the first month, introduce no more than 1 inch of fish per 5 gallon of saltwater.                  Directions               Just place in tank, add saltwater (for best results use NutriSeawater) then add fish, no waiting required.

## Features

- Immediately removes nitrogenous waste (Ammonia, Nitrite and helps remove Nitrate)
- Grain size 1.0 to 2.5 mm diameter
- Reduces harmful nitrate, maintains proper pH
- Provides enhanced buffering capacity, instant Cycling guaranteed
- Use a minimum of 1 pound Bio-Active Live Aragonite Sand per gallon of saltwater, with appropriate filtering system allow it to circulate, during the first month introduce fish less than 1 inch per 5 gallon saltwater

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Fish |
| Product Dimensions | 35.56 x 25.4 x 5.08 cm; 907.18 g |
| Item model number | 20721 |
| Flavor | Fish |
| Item Form | Granules |
| Colour | Wheat |
| Size | 9.55 lbs |
| Number of Items | 1 |
| Quantity | 1 |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 907 g |

## Product Details

- **Brand:** Nature's Ocean
- **Liquid Volume:** 5 Gallons
- **Item Weight:** 2 Pounds
- **Item Form:** Granules
- **Target Species:** Fish

## Images

![Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs - Image 1](https://m.media-amazon.com/images/I/81jAVObrm8L.jpg)
![Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs - Image 2](https://m.media-amazon.com/images/I/81plaGM9tuL.jpg)
![Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs - Image 3](https://m.media-amazon.com/images/I/81fRjyyv8zL.jpg)
![Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs - Image 4](https://m.media-amazon.com/images/I/91LWTQ1B8uL.jpg)
![Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs - Image 5](https://m.media-amazon.com/images/I/81HS5i2PbyL.jpg)

## Questions & Answers

**Q: Will algae grow with just this product, light, and saltwater?**
A: Assuming you’re adding a heater too, yes

**Q: My sandbed is 1”. Is it okay to add this to an established tank with fish/coral?**
A: I really don't recommend it.  It will cloud the tank severely and leave a powdery covering on everything.

**Q: Will this really cycle a new tank instantly? Seems too good to be true.**
A: Nothing, I repeat nothing cycles a tank instantly

 This will help kickstart a cycle but requires an ammonia source and time.

**Q: Do you have to add anything else to tap water to make this fish safe?**
A: As long as you don’t have any live stock you can just add tap water I would personally use dechlorinated water

## Frequently Bought Together

- Nature's Ocean Bio-Activ Live Aragonite Reef Substrate, 8 lbs
- Instant Ocean Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving
- Coralife Aquarium Fish Tank Deep Six Hydrometer For Measuring Water Salinity PPT and Specific Gravity

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/53536851-natures-ocean-bio-activ-live-aragonite-reef-substrate-8-lbs](https://www.desertcart.sk/products/53536851-natures-ocean-bio-activ-live-aragonite-reef-substrate-8-lbs)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-07*