---
product_id: 12404940
title: "Seachem Fluorite Black Sand Substrate, 7.7lb"
brand: "seachem"
price: "₨41727"
currency: LKR
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.lk/products/12404940-seachem-fluorite-black-sand-substrate-7-7lb
store_origin: LK
region: Sri Lanka
---

# 100% natural black sand enhances plant growth easy to rinse & maintain Seachem Fluorite Black Sand Substrate, 7.7lb

**Brand:** seachem
**Price:** ₨41727
**Availability:** ✅ In Stock

## Summary

> ⚫ Elevate your aquarium’s vibe with the ultimate black sand substrate!

## Quick Answers

- **What is this?** Seachem Fluorite Black Sand Substrate, 7.7lb by seachem
- **How much does it cost?** ₨41727 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/12404940-seachem-fluorite-black-sand-substrate-7-7lb)

## Best For

- seachem enthusiasts

## Why This Product

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

## Key Features

- • **Fish-Friendly Texture:** Soft granules ensure comfort for bottom-dwellers and delicate species.
- • **Sleek Jet-Black Elegance:** Transforms your aquarium into a modern aquatic masterpiece.
- • **Cleaner Tank, Healthier Fish:** Prevents debris buildup by keeping waste on top for easy filtration.
- • **Long-Lasting Color Integrity:** Maintains deep black hue without fading, keeping your tank stunning over time.
- • **Optimized for Plant Vitality:** Premium natural sand that boosts lush, vibrant plant life.

## Overview

Seachem Fluorite Black Sand Substrate is a 7.7lb premium natural sand designed specifically for planted aquariums. Its 100% polyester composition offers a soft, fish-friendly texture that promotes healthy plant growth while maintaining water clarity. The substrate’s deep black color enhances the visual appeal of aquatic life and resists fading over time, making it a top choice for aquarium enthusiasts seeking both style and function.

## Description

Seachem Fluorite Black Sand Substrate, 7.7lb

Review: Very very fine! - This is the finest sand I have ever seen. When I opened the bag, I actually thought it was powder. I had to rinse it several times, but now that it’s in the aquarium, it looks nice. Just be aware if you’re looking for larger grain, this is not for you.
Review: Looks good! - Washed my sand before adding it to the tank per the reviews. Water was cloudy at first but cleared up perfectly. As others have mentioned, the sand looks more gray than black but is gorgeous, and a great change from the gravel I had before. I ended up buying both the 14 lb and 7.7lb bags for my 20g tank to get the coverage I wanted. Could probably have gone with 2 of the 14s even.

## Features

- 100% Polyester
- Premium natural sand for the planted aquarium
- Good for the life of the aquarium

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00GYXB2W2 |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #27,342 in Pet Supplies ( See Top 100 in Pet Supplies ) #20 in Aquarium Sand |
| Brand | Seachem |
| Brand Name | Seachem |
| Customer Reviews | 4.5 out of 5 stars 585 Reviews |
| Global Trade Identification Number | 00000116352307 |
| Included Components | no |
| Item Form | Granules |
| Item Type Name | Substrate |
| Item Weight | 1 Pounds |
| Manufacturer | Seachem |
| Manufacturer Part Number | 67135230 |
| Model Number | 67135230 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Target Species | Aquatic Plants |
| UPC | 000116352307 |
| Unit Count | 123.2 Ounce |
| Warranty Description | -. |

## Product Details

- **Brand:** Seachem
- **Item Form:** Granules
- **Item Weight:** 1 Pounds
- **Manufacturer:** Seachem
- **Pet Type:** Fish

## Images

![Seachem Fluorite Black Sand Substrate, 7.7lb - Image 1](https://m.media-amazon.com/images/I/61lr-mv3B5L.jpg)
![Seachem Fluorite Black Sand Substrate, 7.7lb - Image 2](https://m.media-amazon.com/images/I/71pshox75mL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very very fine!
*by J***D on April 24, 2026*

This is the finest sand I have ever seen. When I opened the bag, I actually thought it was powder. I had to rinse it several times, but now that it’s in the aquarium, it looks nice. Just be aware if you’re looking for larger grain, this is not for you.

### ⭐⭐⭐⭐⭐ Looks good!
*by M***C on April 30, 2026*

Washed my sand before adding it to the tank per the reviews. Water was cloudy at first but cleared up perfectly. As others have mentioned, the sand looks more gray than black but is gorgeous, and a great change from the gravel I had before. I ended up buying both the 14 lb and 7.7lb bags for my 20g tank to get the coverage I wanted. Could probably have gone with 2 of the 14s even.

### ⭐⭐⭐⭐ Great product, but Rinse, rinse, rinse!
*by P***A on December 11, 2025*

This worked great in my planted shrimp tank, I have purchased this substrate twice now. Word to the wise though; rinse, rinse, rinse, before adding to the tank to prevent cloudiness of your water or it it will take a long time to filter out the dust!

## Frequently Bought Together

- Seachem Fluorite Black Sand Substrate, 7.7lb
- Fluval 12694 Plant and Shrimp Stratum for Freshwater Fish Tanks, 8.8 lbs. – Aquarium Substrate for Strong Plant Growth, Supports Neutral to Slightly Acidic pH
- Seachem Fluorite Black Clay Gravel, 7.7 lb

---

## 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.lk/products/12404940-seachem-fluorite-black-sand-substrate-7-7lb](https://www.desertcart.lk/products/12404940-seachem-fluorite-black-sand-substrate-7-7lb)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-05-24*