---
product_id: 232174609
title: "Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG"
brand: "amtra"
price: "€ 41.45"
currency: EUR
in_stock: true
reviews_count: 8
category: "Amtra"
url: https://www.desertcart.pt/products/232174609-polychrome-natural-aquarium-gravel-decorative-soil-sand-and-white-gravel
store_origin: PT
region: Portugal
---

# Polychrome color mix for vibrant aquascapes 3-4 mm grain size for perfect texture 2 kg premium natural gravel Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG

**Brand:** amtra
**Price:** € 41.45
**Availability:** ✅ In Stock

## Summary

> 🌊 Transform your tank into a vibrant underwater masterpiece!

## Quick Answers

- **What is this?** Polychrome - Natural aquarium gravel, decorative soil, sand and white gravel, grains 3-4 mm, 2 KG by amtra
- **How much does it cost?** € 41.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/232174609-polychrome-natural-aquarium-gravel-decorative-soil-sand-and-white-gravel)

## 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

- • **Versatile Use:** Ideal for both freshwater and saltwater tanks—one gravel, endless possibilities
- • **Safe & Natural:** Non-toxic, non-carbonate substrate ensures a healthy aquatic environment
- • **Effortless Cleanliness:** Rinses clear in minutes, keeping your water pristine and your setup hassle-free
- • **Depth-Defining Gradient:** Layer 4cm front & 7cm back for stunning 3D aquarium views
- • **Vibrant Polychrome Palette:** Multi-color grains create eye-catching, Instagram-worthy aquascapes

## Overview

Amtra Polychrome is a 2 kg pack of natural, non-toxic aquarium gravel with 3-4 mm grains, designed to enhance both freshwater and saltwater tanks. Its polychrome color mix and recommended layering technique create depth and vibrancy, while its easy-to-clean, safe composition supports healthy aquatic life and stunning aquascapes.

## Description

From the manufacturer Amtra sands, suitable for your aquascaping Specially selected decorative substrates to recreate the bottom of aquariums. Thanks to this natural substrate, you can set up your aquarium easily and safely. Non-toxic, non-carbonate.USE: Amtra sands are suitable for both fresh and sea water. Place an approximate 4cm layer at the front and 7cm at the rear, creating a height difference that gives depth to the view of the tub Which sand to choose? Sand Grain: Fine The most classic soil to recreate your freshwater or saltwater environment, ideal for any preparation Ceramic Quartz Grain: fine to medium Available in a variety of colours, it lends itself to creating thematic aquariums, bright and creative colors Gravel Grain: coarse Ideal for creating backdrops other than classic fine sand substrates, especially used to recreate stony backdrops Master Soil Grain: Soil, Mixed Biologically active natural soil, rich in trace minerals, ideal for plant growth

Review: Clean, quality, perfect size and outstanding value too. Cannot be faulted. Top marks - I ordered this yesterday (Thursday) after being sent the wrong size elsewhere and it arrived late afternoon (Friday). All of my plants (around 16/17) have just had the compost surface coated with this as it makes the succulent bowls look great and helps to keep down the sciarid flies too. The gravel is the perfect size for the plants, good colour mix and even though I washed it all in a sieve, there was hardly any colouring of the water. Really clean. I'd definitely wash all gravel first before you introduce it to any aquarium though (I always did that as some are absolutely filthy). For the amount of gravel you get in a bag and the price of a bag, it's outstanding quality and price. An easy 11/10. Thank you!
Review: Easy to clean - This was EASILY one of the quickest and easiest gravels I’ve ever had. Rinsed clear within minutes which I’ve never had before. Looks great and is a good size. Works perfectly to landscape and I love the mix of colours. Would absolutely buy again.

## 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 |
|---------------|-------|
| ASIN | B071YPVC2G |
| Allergen Information | Abalone |
| Batteries required | No |
| Best Sellers Rank | 1,340 in Pet Supplies ( See Top 100 in Pet Supplies ) 1 in Aquarium Sand |
| Colour | Polychrom |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,019) |
| Date First Available | 28 April 2017 |
| EU Energy Efficiency Label | A+, B |
| Item Weight | 2 kg |
| Item model number | A4022047 |
| Number of Items | 1 |
| Pet Life Stage | Baby |
| Pet Type | fish |
| Product Dimensions | 26 x 13 x 5 cm; 2 kg |
| Quantity | 1 |
| Size | 2kg |
| Specific Uses | Active |

## Images

![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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Clean, quality, perfect size and outstanding value too. Cannot be faulted. Top marks
*by E***L on 25 July 2025*

I ordered this yesterday (Thursday) after being sent the wrong size elsewhere and it arrived late afternoon (Friday). All of my plants (around 16/17) have just had the compost surface coated with this as it makes the succulent bowls look great and helps to keep down the sciarid flies too. The gravel is the perfect size for the plants, good colour mix and even though I washed it all in a sieve, there was hardly any colouring of the water. Really clean. I'd definitely wash all gravel first before you introduce it to any aquarium though (I always did that as some are absolutely filthy). For the amount of gravel you get in a bag and the price of a bag, it's outstanding quality and price. An easy 11/10. Thank you!

### ⭐⭐⭐⭐⭐ Easy to clean
*by C***Y on 7 December 2025*

This was EASILY one of the quickest and easiest gravels I’ve ever had. Rinsed clear within minutes which I’ve never had before. Looks great and is a good size. Works perfectly to landscape and I love the mix of colours. Would absolutely buy again.

### ⭐⭐⭐⭐⭐ Looks standard.
*by P***N on 15 December 2025*

The standard look and colours you’d expect. Quite large and course. Poured over substrate and with the plants already in. Hasn’t affected clarity. Two bags for an inch deep in a tiny 6l betta tank. So just enough.

## 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.pt/products/232174609-polychrome-natural-aquarium-gravel-decorative-soil-sand-and-white-gravel](https://www.desertcart.pt/products/232174609-polychrome-natural-aquarium-gravel-decorative-soil-sand-and-white-gravel)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-19*