---
product_id: 232174609
title: "Amtra Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG"
brand: "amtra"
price: "R$507"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/232174609-amtra-polychrome-natural-aquarium-gravel-decorative-soil-sand-and-white
store_origin: BR
region: Brazil
---

# 3-4mm grain size Non-toxic & safe 2kg of natural substrate Amtra Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG

**Brand:** amtra
**Price:** R$507
**Availability:** ✅ In Stock

## Summary

> 🌟 Dive into a world of color and safety!

## Quick Answers

- **What is this?** Amtra Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG by amtra
- **How much does it cost?** R$507 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/232174609-amtra-polychrome-natural-aquarium-gravel-decorative-soil-sand-and-white)

## Best For

- amtra enthusiasts

## Why This Product

- Trusted amtra brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Setup:** Effortlessly achieve a professional look with minimal effort.
- • **Versatile Use:** Perfect for both freshwater and seawater tanks.
- • **Safe & Non-Toxic:** Rest easy knowing your fish thrive in a secure environment.
- • **Depth & Dimension:** Create stunning visual gradients for a captivating underwater landscape.
- • **Transform Your Aquarium:** Elevate your aquatic space with vibrant, natural colors.

## Overview

Amtra Polychrome is a 2kg bag of natural aquarium gravel designed to enhance the aesthetic of your fish tank. With a grain size of 3-4mm, this non-toxic substrate is perfect for creating depth and dimension in both freshwater and seawater environments. Ideal for fish enthusiasts looking to create a vibrant and safe habitat.

## Description

Amtra Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG

## Features

- CONTENTS: Bottom material for freshwater aquariums, decorative substrate specially selected to recreate the bottom of aquariums. Format: 2Kg
- NATURAL: Thanks to this natural gravel, you can set up your aquariums in a safe way. Non-toxic, gaseous substrate
- USE: Place an indicative layer of 4cm on the front and 7cm on the back, creating a gradient that gives depth to the vision of the pool
- GRAIN SIZE: The gravel is 3-4mm in size.
- ADVICE FOR USE: The product is ideal for use as a backdrop in freshwater and seawater tanks.
- Packaging may vary

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | fish |
| Product Dimensions | 26 x 13 x 5 cm; 2 kg |
| Item model number | A4022047 |
| Pet Life Stage | Baby |
| Allergen Information | Abalone |
| Colour | Polychrom |
| Size | 2kg |
| Number of Items | 1 |
| Quantity | 1 |
| Specific Uses | Active |
| Batteries required | No |
| EU Energy Efficiency Label | A+, B |
| Item Weight | 2 kg |

## Images

![Amtra Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG - Image 1](https://m.media-amazon.com/images/I/81WBTa8GlYL.jpg)

## Questions & Answers

**Q: Can I put this in tank ,washed,with fish already in?**
A: It is possible but it is really fine , I have a four foot aquarium and I do sometimes top up existing sand after a water change

**Q: How big is the gravel? 1mm?**
A: They are very small pieces. One bag is only good for a small area.

**Q: How fine is this sand?**
A: 1 mm - very natural in colour with different hues unlike some white gravel/sand which looks bleached white and uniformed

**Q: Can you use this sand for garden under membrane**
A: Not sure but it’s not really sand it’s more like grit. You could probably get builders sand for cheaper

## Frequently Bought Together

- Amtra Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG
- AMTRA White Quartz - Fine White Quartz Aquarium Sand, for Fresh or Salt Water, Grain Size 0.1-0.7mm, Quantity 2kg
- AQUARIAN TAP WATER SAFE, Aquarium Water Conditioner, 118 ml Bottle,White

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**Shop now:** [https://www.desertcart.com.br/products/232174609-amtra-polychrome-natural-aquarium-gravel-decorative-soil-sand-and-white](https://www.desertcart.com.br/products/232174609-amtra-polychrome-natural-aquarium-gravel-decorative-soil-sand-and-white)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-25*