---
product_id: 49907525
title: "Flourish Potassium Supplement, 100 ml"
brand: "seachem"
price: "€ 27.99"
currency: EUR
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.at/products/49907525-flourish-potassium-supplement-100-ml
store_origin: AT
region: Austria
---

# Boosts vibrant plant growth Highly concentrated 50,000 mg/L No phosphate or nitrate Flourish Potassium Supplement, 100 ml

**Brand:** seachem
**Price:** € 27.99
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquarium game—because your plants deserve the best!

## Quick Answers

- **What is this?** Flourish Potassium Supplement, 100 ml by seachem
- **How much does it cost?** € 27.99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/49907525-flourish-potassium-supplement-100-ml)

## 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

- • **Effortless Dosing:** Simple mix ratio treats 50 gallons, perfect for busy pros
- • **Visible Results Fast:** Noticeably greener leaves and healthier growth in days
- • **Clean & Green Formula:** Zero phosphate and nitrate—pure plant nutrition without compromise
- • **Universal Compatibility:** Safe for all life stages, making your planted tank thrive
- • **Power-Packed Concentration:** Ultra-potent 50,000 mg/L potassium for rapid plant vitality

## Overview

Seachem Flourish Potassium is a highly concentrated liquid supplement (50,000 mg/L) designed to enhance the health and vibrancy of planted aquariums. Free from phosphate and nitrate, it supports optimal plant growth across all life stages with easy dosing for up to 50 gallons. Trusted by thousands, it delivers visible improvements in just days.

## Description

Product Description Seachem Flourish Potassium 100Ml Directions Mix 250 milliliters of Seachem Flourish Potassium with 50 US gallons of water and use it every 4 to 6 months for optimal results. Box Contains water treatment

Review: For aquarium plants - The best product
Review: Noticeable Results in Just Days! - Really impressed with this supplement! After just a few days of using it, my planted tank is already looking healthier and more vibrant. The leaves are greener, and overall plant growth seems to have improved noticeably. Easy to dose and a great addition to my routine. Definitely a must-have for planted tanks!

## Features

- Potassium supplement for the planted aquarium
- Highly concentrated (50,000 mg/L)
- Does not contain phosphate or nitrate
- Age range: All Life Stages

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002A5WRO |
| Allergen Information | Yam Free |
| Brand | Seachem |
| Brand Name | Seachem |
| Country Of Origin | USA |
| Customer Reviews | 4.7 out of 5 stars 3,010 Reviews |
| Global Trade Identification Number | 00000116046503 |
| Item Form | Liquid |
| Item Type Name | Aquarium conditioner |
| Item Weight | 0.34 Pounds |
| Item form | Liquid |
| Item weight | 0.34 Pounds |
| Liquid Volume | 100 Millilitres |
| Liquid volume | 100 Millilitres |
| Manufacturer | Seachem |
| Manufacturer Part Number | 465 |
| Model Number | 465 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 000116046503 |
| Unit Count | 100.0 millilitre |
| Unit count | 100.0 millilitre |

## Product Details

- **Brand:** Seachem
- **Item form:** Liquid
- **Item weight:** 0.34 Pounds
- **Liquid volume:** 100 Millilitres
- **Number of Packs:** 1

## Images

![Flourish Potassium Supplement, 100 ml - Image 1](https://m.media-amazon.com/images/I/61BCaRPJGTL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ For aquarium plants
*by W***A on 30 June 2026*

The best product

### ⭐⭐⭐⭐⭐ Noticeable Results in Just Days!
*by B***G on 24 March 2026*

Really impressed with this supplement! After just a few days of using it, my planted tank is already looking healthier and more vibrant. The leaves are greener, and overall plant growth seems to have improved noticeably. Easy to dose and a great addition to my routine. Definitely a must-have for planted tanks!

### ⭐⭐⭐⭐⭐ Aquatic plant must have.
*by J***D on 18 March 2025*

One of the essential elements required by aquarium plants, I wouldn’t be without it. 👍

## Frequently Bought Together

- Flourish Potassium, 100 mL / 3.4 fl. oz.
- Flourish Phosphorus 500ml
- Flourish Iron, 100 mL / 3.4 fl. oz.

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**Shop now:** [https://www.desertcart.at/products/49907525-flourish-potassium-supplement-100-ml](https://www.desertcart.at/products/49907525-flourish-potassium-supplement-100-ml)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-08-21*