---
product_id: 4156361
title: "Seachem Flourish Potassium 500ml"
brand: "seachem"
price: "£19.52"
currency: GBP
in_stock: true
category: "Seachem"
url: https://www.desertcart.co.uk/products/4156361-seachem-flourish-potassium-500ml
store_origin: GB
region: United Kingdom
---

# Phosphate & Nitrate free formula 50,000 mg/L Potassium concentration 500ml liquid volume for precise dosing Seachem Flourish Potassium 500ml

**Brand:** seachem
**Price:** £19.52
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock your aquarium’s full growth potential with pure potassium power!

## Quick Answers

- **What is this?** Seachem Flourish Potassium 500ml by seachem
- **How much does it cost?** £19.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/4156361-seachem-flourish-potassium-500ml)

## 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

- • **Clean & Pure:** Zero phosphate and nitrate to keep your aquarium balanced and algae-free.
- • **Precision Dosing:** 500ml liquid bottle ensures easy, accurate supplementation.
- • **Trusted & Proven:** Top-rated with 4.8 stars from over 3,000 aquarists worldwide.
- • **Maximize Plant Growth:** High-potassium formula fuels lush, vibrant aquatic plants.
- • **Synergistic Compatibility:** Designed to work seamlessly with the entire Seachem Flourish line and Fluorite gravel.

## Overview

Seachem Flourish Potassium is a premium 500ml liquid supplement delivering 50,000 mg/L potassium to support vigorous growth in freshwater planted aquariums. Free from phosphate and nitrate, it prevents nutrient imbalances and is optimized for use alongside the full Flourish product range and Fluorite gravel, making it a trusted choice for aquascaping enthusiasts.

## Description

Sachem Flourish Potassium contains 50,000 mg/L of potassium suitable for the natural freshwater aquarium. Potassium is one of several elements that are vitally important to maintaining a vigorous level of growth in a planted aquarium. Potassium can become depleted in a rapidly growing system or when the source water has a low mineral content. In these cases potassium could become the limiting factor to growth. Use Flourish Potassium to prevent potassium depletion and maintain the highest level of growth. Flourish Potassium is an integral component of Sachem's plant products and is recommended for use with the entire Flourish line as well as our Fluorite gravel. Contains no phosphate or nitrate.

## Features

- Potassium supplement
- For planted aquariums
- Contains no phosphate or nitrate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002APILO |
| ASIN  | B0002APILO |
| Allergen Information | Yam Free |
| Best Sellers Rank | #15,705 in Pet Supplies ( See Top 100 in Pet Supplies ) #126 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,046) |
| Date First Available  | October 2, 2001 |
| Department  | Unisex-Adult |
| Global Trade Identification Number | 00000116046305 |
| Included Components | Seachem Flourish Potassium 500ml |
| Is Discontinued By Manufacturer  | No |
| Item Form | Liquid |
| Item Type Name | Seachem Flourish Potassium 500ml |
| Item Weight | 265 Grams |
| Item model number  | 463 |
| Liquid Volume | 500 Milliliters |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer  | Seachem Laboratories, Inc. |
| Manufacturer Part Number | 463 |
| Model Number | 463 |
| Product Dimensions  | 7.6 x 1.5 x 1.5 inches; 9.35 ounces |
| Target Species | Aquatic plants |
| UPC | 000116046305 |
| Unit Count | 1 Count |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Seachem
- **Item Form:** Liquid
- **Item Weight:** 265 Grams
- **Liquid Volume:** 500 Milliliters
- **Unit Count:** 1 Count

## Images

![Seachem Flourish Potassium 500ml - Image 1](https://m.media-amazon.com/images/I/51tnZl9nI-L.jpg)

## Available Options

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

## Frequently Bought Together

- Seachem Flourish Potassium 500ml
- Seachem Flourish Freshwater Plant Supplement 500 ml
- Seachem Flourish Iron 500ml

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-30*