---
product_id: 51247232
title: "Seachem Flourish Potassium Supplement, 250 ml"
brand: "seachem"
price: "฿2320"
currency: THB
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.co.th/products/51247232-seachem-flourish-potassium-supplement-250-ml
store_origin: TH
region: Thailand
---

# Rapid visible results in days Boosts plant health & growth 50,000 mg/L potassium concentration Seachem Flourish Potassium Supplement, 250 ml

**Brand:** seachem
**Price:** ฿2320
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquarium’s green game with every drop!

## Quick Answers

- **What is this?** Seachem Flourish Potassium Supplement, 250 ml by seachem
- **How much does it cost?** ฿2320 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/51247232-seachem-flourish-potassium-supplement-250-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

- • **Easy Precision Dosing:** 1 capful per 125L for hassle-free maintenance
- • **Trusted by Aquascaping Pros:** Join thousands elevating their planted tanks
- • **Visible Plant Revival in Days:** Say goodbye to yellowing and weak stems fast
- • **Phosphate & Nitrate Free Formula:** Pure potassium boost without harmful additives
- • **Ultra-Concentrated Potassium Power:** Delivers 50,000 mg/L for maximum plant vitality

## Overview

Seachem Flourish Potassium Supplement is a highly concentrated (50,000 mg/L) liquid potassium additive designed to enhance the health and growth of aquatic plants. Free from phosphate and nitrate, it targets potassium deficiencies that cause yellowing, browning, and weak stems. Easy to dose and trusted by aquarists, it delivers noticeable improvements in just days, making it an essential for vibrant planted aquariums.

## Description

Product Description Seachem Flourish Potassium 250Ml Directions Use 1 capful (5 mL) for every 125 L (30 US gallons). This dose raises potassium by 2 mg/L. Repeat 2–3 times per week or as needed in response to signs of potassium deficiency in older leaves which include: chlorosis (yellowing), necrosis (death/browning), pinholes in leaves, and weak stems and roots. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains water treatment See more

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

- Contains sensitizing substances. May produce an allergic reaction.
- Potassium supplement for the planted aquarium
- Highly concentrated (50,000 mg/L)
- Does not contain phosphate or nitrate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002A5WRY |
| Allergen Information | Yam Free |
| Best Sellers Rank | 14,467 in Pet Supplies ( See Top 100 in Pet Supplies ) 167 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Country Of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,922) |
| Global Trade Identification Number | 00000116046602 |
| Item Form | Liquid |
| Item Type Name | Seachem Flourish Potassium 250ml |
| Item Weight | 249 g |
| Liquid Volume | 250 Millilitres |
| Manufacturer | Seachem |
| Manufacturer Part Number | 466 |
| Model Number | 466 |
| Target Species | Aquatic Plants |
| UPC | 015568977138 000116046602 |
| Unit Count | 250.0 millilitre |

## Product Details

- **Brand:** Seachem
- **Item form:** Liquid
- **Item weight:** 249 g
- **Liquid volume:** 250 Millilitres
- **Manufacturer:** Seachem

## Images

![Seachem Flourish Potassium Supplement, 250 ml - Image 1](https://m.media-amazon.com/images/I/51mOdi91cQL.jpg)

## Available Options

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

## Questions & Answers

**Q: How much do i use of this 160 litres fish tank**
A: it depends on how much you need to raise potassium levels by in your tank, 6-7ml should raise a 160 litre tank by 2mg per litre, personally i use 25 ml on water change day to push to my preferred mg/l then dose accordingly through the week, the more live plants you have the more you would require but each tank has there own requirements, if you dose things such as standard flourish etc then your already dosing potassium in small amounts

**Q: Can you use this brand on house/ outdoor plants.**
A: I think it would be to concentrated the recommendation is 5ml to 200L

## 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

- Seachem Flourish Potassium 250ml
- Seachem Flourish Nitrogen 250ml

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-28*