---
product_id: 49907525
title: "Flourish Potassium Supplement, 100 ml"
brand: "seachem"
price: "€ 24.67"
currency: EUR
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.pt/products/49907525-flourish-potassium-supplement-100-ml
store_origin: PT
region: Portugal
---

# Effective dosing every 4-6 months Phosphate & nitrate free formula 50,000 mg/L potassium concentration Flourish Potassium Supplement, 100 ml

**Brand:** seachem
**Price:** € 24.67
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquarium’s green game—because thriving plants don’t wait!

## Quick Answers

- **What is this?** Flourish Potassium Supplement, 100 ml by seachem
- **How much does it cost?** € 24.67 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/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

- • **Long-Lasting Impact:** Dose once every 4-6 months for sustained lush growth
- • **Clean & Safe Formula:** No phosphates or nitrates—just what your aquatic plants crave
- • **Trusted by Thousands:** 4.7-star rating from nearly 3,000 aquarists who swear by it
- • **Universal Plant Support:** Perfectly balanced for all life stages of your planted aquarium
- • **Ultra-Concentrated Potassium Boost:** Maximize plant vitality with 50,000 mg/L of pure potassium power

## Overview

Seachem Flourish Potassium is a highly concentrated liquid supplement (50,000 mg/L) designed to enhance the health and growth of aquatic plants without adding phosphates or nitrates. Suitable for all life stages, it requires dosing only every 4 to 6 months, making it an efficient and essential addition to any planted aquarium.

## 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: 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!
Review: Aquatic plant must have. - One of the essential elements required by aquarium plants, I wouldn’t be without it. 👍

## 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 2,964 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

### ⭐⭐⭐⭐⭐ 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. 👍

### ⭐⭐⭐⭐⭐ good stuff
*by S***N on 28 September 2021*

using for a while now, always trust seachem for shrimp safe items

## 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.pt/products/49907525-flourish-potassium-supplement-100-ml](https://www.desertcart.pt/products/49907525-flourish-potassium-supplement-100-ml)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-07-10*