---
product_id: 7305522
title: "Flourite, 7 kg / 15.4 lbs"
brand: "seachem"
price: "¥29224"
currency: JPY
in_stock: true
reviews_count: 8
category: "Seachem"
url: https://www.desertcart.jp/products/7305522-flourite-7-kg-15-4-lbs
store_origin: JP
region: Japan
---

# Optimized for planted aquariums No pH alteration, natural buffering 7 kg porous clay gravel Flourite, 7 kg / 15.4 lbs

**Brand:** seachem
**Price:** ¥29224
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your planted tank game with Flourite — where nature meets effortless beauty!

## Quick Answers

- **What is this?** Flourite, 7 kg / 15.4 lbs by seachem
- **How much does it cost?** ¥29224 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/7305522-flourite-7-kg-15-4-lbs)

## 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

- • **Long-Term Stability:** Chemically inert and durable substrate that supports your aquarium’s life cycle without replacement.
- • **Effortless Maintenance:** Rinse right in the bag to reduce dust; no vacuuming needed, just large water changes to keep your tank pristine.
- • **Pure Porous Clay Power:** 7 kg of stable, fracted clay gravel designed to boost plant root health and aquarium biofiltration.
- • **Natural Aesthetic Boost:** Enhances fish coloration and creates a clean, authentic look that elevates any freshwater aquarium.
- • **Plant-Perfect Substrate:** Specifically engineered for planted tanks—no need for laterite or chemical additives, ensuring a natural ecosystem.

## Overview

Seachem Flourite is a 7 kg pack of natural, porous clay gravel substrate designed for planted freshwater aquariums. It supports healthy plant growth and biofiltration without altering water pH or requiring additives like laterite. Easy to rinse and maintain, Flourite enhances aquatic aesthetics and promotes a stable, thriving ecosystem for all life stages.

## Description

Sachem fluorite is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment. Fluorite is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Fluorite is not chemically coated or Treated and will not alter the pH of the water. Fluorite is good for the life of the aquarium and need not be replaced.

Review: Good substrate makes for good water. - This substrate has a clean, nice natural look. The material is chunks of clay and minerals. Supports a great biofilter and seems to be just right to buffer the pH and maintain mineral hardness (GH and KH). Never vacuum it and instead to large RO water changes each week. If you are adding this to an existing tank or there is livestock in the tank, you should wash it first. Rinse it and agitate it until the runoff is clear, then mix it around and rinse some more. Use a strainer with small holes. This substrate gets very dusty during shipping and if it is not washed your water will turn red and the TDS will skyrocket and may injure any livestock. That said, if you don't have livestock there is no need to wash the substrate and it's probably better not to, because it is good to have a diverse mix of particle sizes and washing the substrate removes all or most of the smaller sand like pieces. The finest particles will settle to the bottom of the substrate and add surface area to the biofilter, which will filter the finest pieces of detritus (fish and plant waste) as it settles downward. The beneficial microbes turn the detritus into dissolved nitrates which you remove by doing large water changes and having plants that consume it. Again, this is without ever vacuuming the gravel. Water testing for ammonia, nitrate, nitrate, GH and KH, is of course recommended.
Review: Dusty but...... - ...if you rinse well it's not as bad as some of the reviews. I'm very happy with this type of substrate. I had gravel in my 3 tanks before I discovered this stuff, and the gravel was so dirty and my plants weren't thriving. I bought flourite black and was afraid even after rinsing many several times in a half hour that it would murk up my tanks. I put all my fish and plants in a giant plastic tote with their filter/heater/decor for a couple weeks while changing substrates and cycling again. The murk went away pretty quick, I had clear water within an hour. The way I rinsed: Dumped 1/2 bag of flourite in a large bucket. Rinsed by filling bucket with water over substrate and BLASTED IT with the hose until I filled the bucket with water. Let substrate settle to bottom (some flourite may blast out but it's an insignificant amount, in my opinion) then let water drain almost completely.... Then repeat this about 10-15 times or until it's only slightly murky. Dump in aquarium and fill with water as usual and set up as usual. After planting live plants and blulbs of water lily & water onion, and another type of seed in this substrate, I'm convinced this is the best substrate for my tanks. The bulbs I planted in this substrate that would not grow in the gravel are thriving in the flourite, they look beautiful. It has not clouded up anything and it looks more natural in the tanks. You can also see the fish scale color is much brighter against the natural and dark substrate. I bought this clay colored kind for my red claw crab/guppy tank. I haven't planted this one yet but I will update with pictures in a month or so. The pictures posted right now are with flourite black. Another thing about this stuff is: there are larger pieces and smaller pieces. I thought it would be more sandlike but I actually like it better than some other actual sand substrate. Just thought this might be nice to know in case other buyers expected it to be more like sand. It's actually small clay pieces. Your aquatic plants will love it! **update** 2 days later: So I wrote a review a little early for this flourite... Yesterday I almost came back to leave a 1 Star review... But I'm going to leave it at 5 because even though the dust was BAD with this red clay substrate compared to the black clay... It took 15 rinses with a hose outside and then I added it to my tank and filled with water... It was fully murky for 24 hrs. I put my decor and plants the filter in to help and ended up taking everything out after the 24 hours and rinsing everything off (it was covered in red dust/sludge).. Draining all of the water again and then refilling with water. Be sure to put a bowl with tall sides in to pour the water directly into the bowl so you don't disturb the substrate as much as possible. Let the water sit with NO filter going for a few hours and then let it run overnight with the bowl under the water flow if you have a filter that drops water). Then do not to disturb the substrate again when placing your decor... I placed a large abalone shell under my filter to keep the substrate from getting pushed around. (I know... Pain in the A but... Look how natural and beautiful my tank is!!)... Anyway, if you don't mind a little work for an amazing substrate with great results of you keep a planted tank... This stuff is really worth it. I probably personally will never buy this red stuff again but the black stuff is great... Low dust and the plants grow like wild in there! My crab seems to like it as well! My first two pictures are with the black flourite and the second two are with the red, as you can plainly see.

## Features

- Rinse right in the bag
- All natural Porous clay
- For Planted Aquarium
- No laterite needed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00025YSB0 |
| ASIN  | B00025YSB0 |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #39,372 in Pet Supplies ( See Top 100 in Pet Supplies ) #55 in Aquarium Gravel |
| Brand Name | Seachem |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,060) |
| Date First Available | October 2, 2001 |
| Date First Available  | October 2, 2001 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | 1. Rinse the Flourite in a mesh bag or colander under running water to remove residual dust. 2. Fill the tank slowly and disperse water to minimize disturbing the Flourite bed, which can cause initial cloudiness. 3. For a 5 cm (2 inch) deep bed in a typical 40 l (10 gallon) tank, use 1 kg (2 lbs) of Flourite. 4. Do not use gravel modifiers such as laterite, as Flourite does not require them. 5. Fl… |
| Included Components | Flourite, 7 kg / 15.4 lbs |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 17 x 11.75 x 1.75 inches |
| Item Package Dimensions L x W x H | 17.72 x 10.24 x 4.25 inches |
| Item Weight | 3.1 Pounds |
| Item model number | 19263 |
| Item model number  | 19263 |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer  | Seachem Laboratories, Inc. |
| Material | Plastic |
| Model Name | Flourite, 7 kg / 15.4 lbs |
| Number of Items | 1 |
| Product Dimensions  | 17 x 11.75 x 1.75 inches; 3.1 Pounds |
| Size | 7 kg/15.4 lb (Pack of 1) |
| Specific Uses for Product | Active |
| Target Audience Keyword | fish |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Seachem
- **Item Form:** Rectangular or Cuboid
- **Item Weight:** 3.1 Pounds
- **Liquid Volume:** 15.4 Liters
- **Manufacturer:** Seachem Laboratories, Inc.

## Images

![Flourite, 7 kg / 15.4 lbs - Image 1](https://m.media-amazon.com/images/I/81q9ZezDUxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good substrate makes for good water.
*by M***Z on October 22, 2021*

This substrate has a clean, nice natural look. The material is chunks of clay and minerals. Supports a great biofilter and seems to be just right to buffer the pH and maintain mineral hardness (GH and KH). Never vacuum it and instead to large RO water changes each week. If you are adding this to an existing tank or there is livestock in the tank, you should wash it first. Rinse it and agitate it until the runoff is clear, then mix it around and rinse some more. Use a strainer with small holes. This substrate gets very dusty during shipping and if it is not washed your water will turn red and the TDS will skyrocket and may injure any livestock. That said, if you don't have livestock there is no need to wash the substrate and it's probably better not to, because it is good to have a diverse mix of particle sizes and washing the substrate removes all or most of the smaller sand like pieces. The finest particles will settle to the bottom of the substrate and add surface area to the biofilter, which will filter the finest pieces of detritus (fish and plant waste) as it settles downward. The beneficial microbes turn the detritus into dissolved nitrates which you remove by doing large water changes and having plants that consume it. Again, this is without ever vacuuming the gravel. Water testing for ammonia, nitrate, nitrate, GH and KH, is of course recommended.

### ⭐⭐⭐⭐⭐ Dusty but......
*by O***0 on December 11, 2017*

...if you rinse well it's not as bad as some of the reviews. I'm very happy with this type of substrate. I had gravel in my 3 tanks before I discovered this stuff, and the gravel was so dirty and my plants weren't thriving. I bought flourite black and was afraid even after rinsing many several times in a half hour that it would murk up my tanks. I put all my fish and plants in a giant plastic tote with their filter/heater/decor for a couple weeks while changing substrates and cycling again. The murk went away pretty quick, I had clear water within an hour. The way I rinsed: Dumped 1/2 bag of flourite in a large bucket. Rinsed by filling bucket with water over substrate and BLASTED IT with the hose until I filled the bucket with water. Let substrate settle to bottom (some flourite may blast out but it's an insignificant amount, in my opinion) then let water drain almost completely.... Then repeat this about 10-15 times or until it's only slightly murky. Dump in aquarium and fill with water as usual and set up as usual. After planting live plants and blulbs of water lily & water onion, and another type of seed in this substrate, I'm convinced this is the best substrate for my tanks. The bulbs I planted in this substrate that would not grow in the gravel are thriving in the flourite, they look beautiful. It has not clouded up anything and it looks more natural in the tanks. You can also see the fish scale color is much brighter against the natural and dark substrate. I bought this clay colored kind for my red claw crab/guppy tank. I haven't planted this one yet but I will update with pictures in a month or so. The pictures posted right now are with flourite black. Another thing about this stuff is: there are larger pieces and smaller pieces. I thought it would be more sandlike but I actually like it better than some other actual sand substrate. Just thought this might be nice to know in case other buyers expected it to be more like sand. It's actually small clay pieces. Your aquatic plants will love it! **update** 2 days later: So I wrote a review a little early for this flourite... Yesterday I almost came back to leave a 1 Star review... But I'm going to leave it at 5 because even though the dust was BAD with this red clay substrate compared to the black clay... It took 15 rinses with a hose outside and then I added it to my tank and filled with water... It was fully murky for 24 hrs. I put my decor and plants the filter in to help and ended up taking everything out after the 24 hours and rinsing everything off (it was covered in red dust/sludge).. Draining all of the water again and then refilling with water. Be sure to put a bowl with tall sides in to pour the water directly into the bowl so you don't disturb the substrate as much as possible. Let the water sit with NO filter going for a few hours and then let it run overnight with the bowl under the water flow if you have a filter that drops water). Then do not to disturb the substrate again when placing your decor... I placed a large abalone shell under my filter to keep the substrate from getting pushed around. (I know... Pain in the A but... Look how natural and beautiful my tank is!!)... Anyway, if you don't mind a little work for an amazing substrate with great results of you keep a planted tank... This stuff is really worth it. I probably personally will never buy this red stuff again but the black stuff is great... Low dust and the plants grow like wild in there! My crab seems to like it as well! My first two pictures are with the black flourite and the second two are with the red, as you can plainly see.

### ⭐⭐⭐⭐⭐ Rinse, rinse, rinse, and rinse again. Then you'll love it, if you have live plants!
*by R***R on June 22, 2020*

This is my first time using Flourite, but the reviews I've read from others using it for their planted aquariums make it sound like it's the best, so I thought I'd give it a try. Read all the reviews here, as well, so it was clear that I needed to rinse the gravel more than usual. They were right. Easiest rinse turned out to be in the yard with a LARGE strainer and a garden hose on high blast. Rinsed just a little gravel at a time, but didn't take long, with the hose. Much quicker than the kitchen sink was! Rinsed until the strainer of gravel produced almost NO color when swished in a bowl of water. Put it in the tank two days ago, using the "pour the water onto a saucer" method, and was pleasantly surprised at how little color was in the water after filling the tank. Turned on the Hamburg Mattenfilter, and the water was surprisingly clear (based on the reviews here) within an hour. Planted some that day, and got a very little color in the water, which quickly cleared. Planted more yesterday. I could see a little color coming up in the spot where I planted, but nothing to even tint the tank as a whole. The pics are from this morning, but it was this clear when I moved the fish over yesterday afternoon. The betta loves it (top right corner of the front view pic), and I love it. The plecostomus will love it once there's some nice algae to take care of. FYI -- what you're seeing is one bag in a 10 gal. I'm going to add another 1/4 to maybe 1/3 -- maybe 1/2 -- bag next weekend. It needs just a little more to make some of the deeper rooted plants happy. The blue sponge in the middle is from the old tank, to help with bacteria transfer. It will be coming out of the tankafter the Hamburg Mattenfilter (the black column on the right back that also hides the pump and heater) has had time to become established. I know, I could/should have cycled the aquarium first, but with a low fish load and high plant load, and some introduced bacteria, like from the blue sponge from the old tank, I haven't had an issue with a new tank set-up in the 50 years that I've been keeping fish on and off. Frequent checking for ammonia and water changes as needed, though! If you're curious about the Hamburg-Mattenfilter, check out swisstropicals dot com. You can also make your own, but I couldn't conveniently find the right thickness of glass locally, and their sponge seems to last longer.

## Frequently Bought Together

- Flourite, 7 kg / 15.4 lbs
- Fluval 12695 Plant and Shrimp Stratum for Freshwater Fish Tanks, 17.6 lbs. – Aquarium Substrate for Strong Plant Growth, Supports Neutral to Slightly Acidic pH
- API ROOT TABS Freshwater Aquarium Plant Fertilizer 0.4-Ounce 10-Count Box

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-07*