---
product_id: 157769732
title: "Seachem Laboratories Flourish Potassium Plant Supplement, 250ml"
brand: "seachem"
price: "1220547₫"
currency: VND
in_stock: false
reviews_count: 8
category: "Seachem"
url: https://www.desertcart.vn/products/157769732-seachem-laboratories-flourish-potassium-plant-supplement-250ml
store_origin: VN
region: Vietnam
---

# Phosphate & nitrate free for pure plant growth Highly concentrated 50,000 mg/L potassium Precise dosing: 5ml per 125L raises K by 2 mg/L Seachem Laboratories Flourish Potassium Plant Supplement, 250ml

**Brand:** seachem
**Price:** 1220547₫
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Unlock the secret to lush, unstoppable aquatic growth!

## Quick Answers

- **What is this?** Seachem Laboratories Flourish Potassium Plant Supplement, 250ml by seachem
- **How much does it cost?** 1220547₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/157769732-seachem-laboratories-flourish-potassium-plant-supplement-250ml)

## 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

- • **Pure Potassium Power:** Boost your aquatic plants with a potent 50,000 mg/L potassium formula that fuels vibrant growth without unwanted nutrients.
- • **Easy & Efficient Dosing:** Just 5ml per 125L raises potassium by 2 mg/L—repeat 2-3 times weekly to keep your planted aquarium thriving.
- • **Targeted Growth Control:** Adjust potassium levels precisely without affecting other nutrients, preventing yellowing and weakness in older leaves.
- • **Zero Nitrate & Phosphate:** Maintain perfect NPK balance by avoiding nitrogen and phosphorus, ideal for pairing with Flourish Nitrogen and Phosphorus supplements.
- • **Trusted by Aquascaping Pros:** Join thousands of hobbyists who swear by Seachem’s premium formula to save and supercharge their aquatic plants.

## Overview

Seachem Flourish Potassium is a highly concentrated (50,000 mg/L) liquid supplement designed to supply essential potassium to planted aquariums without adding phosphate or nitrate. Derived from potassium sulfate, it allows precise nutrient management, preventing potassium deficiency symptoms like yellowing leaves and weak stems. Ideal for use alongside Flourish Nitrogen and Phosphorus, this 250ml formula supports vigorous, healthy plant growth in freshwater tanks.

## Description

Flourish potassium plant supplement 250ml aquarium plant fertilizer potassium supplement for the planted aquarium highly concentrated (50, 000 mg/l) does not contain phosphate or nitrate making it ideal for use with flourish nitrogen and flourish phosphorus description flourish potassium contains 50, 000 mg/l of potassium suitable for the natural planted 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 (signs of which include yellowing in older leaves) and maintain the highest level of growth. The most easily obtained sources of potassium are potassium nitrate and potassium phosphate. Both of these sources add to either nitrogen or phosphorus as well as potassium, making it virtually impossible to target a specific npk ratio. Flourish potassium is derived from potassium sulphate, allowing the user to adjust potassium levels without affecting nitrogen or phosphorus. 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. Guaranteed analysis soluble potash (k2o) 5% derived from: potassium sulphate elemental potassium is present at a concentration of 50, 000 ppm (e. G 5%). Fertilizer laws require us to list potassium in terms of equivalence to a material that is not present (k2o) rather than the more scientifically sound method of simple elemental equivalence. Sizes 250 ml

Review: It’s saved my Java Ferns! - The seller that I purchased the bottle from was Sai Aqua World and they had sent me a genuine and original product. Yes there was some crusty residue around the cap but this isn’t due to a leak from the bottle. Any Seachem product you buy in India must contain the importers hologram & importers label (which has the date of import, importers email and phone number with a proper bar code). I’m very happy with my purchase and that it is an original from the seller that I purchased. This product itself is excellent, any planted tank needs an NPK (nitrogen, phosphorus, potassium) based substrate or fertiliser. Fish waste/poop provides the N & P that aquatic plants need. I have a lot of java fern in my tank whose leaves were blackening due to a lack of K which I was able to dose with this. My plants are thriving now! Thank you so much!
Review: Simply best fertilizer - Seachem is the best fertilizer you can get in our hobby.

## Features

- Seachem laboratories flourish potassium plant supplement 250ml
- Potassium supplement for the planted aquarium
- Does not contain phosphate or nitrate making it ideal for use with flourish nitrogen and flourish phosphorus
- Highly concentrated (50,000 mg/l)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002A5WRY |
| Allergen Information | Yam Free |
| Best Sellers Rank | #25,138 in Pet Supplies ( See Top 100 in Pet Supplies ) #549 in Water Treatments |
| Brand | Seachem |
| Brand Name | Seachem |
| Customer Reviews | 4.7 out of 5 stars 2,555 Reviews |
| Global Trade Identification Number | 00000116046602 |
| Included Components | 1 Piece Seachem Laboratories Flourish Potassium Plant Supplement |
| Item Form | Liquid |
| Item Type Name | Seachem Flourish Potassium 250ml |
| Item Weight | 249 g |
| Liquid Volume | 250 Millilitres |
| Manufacturer | AQUATIC REMEDIES, AQUATIC REMEDIES , Reg. Off. #5, South Made Street, Kolathur , Chennai , Tamil Nadu-99 ; +91 7042836466 Manufacturer AQUATIC REMEDIES, AQUATIC REMEDIES , Reg. Off. #5, South Made Street, Kolathur , Chennai , Tamil Nadu-99 ; +91 7042836466 See more |
| Manufacturer Contact Information | AQUATIC REMEDIES , Reg. Off. #5, South Made Street, Kolathur , Chennai , Tamil Nadu-99 ; +91 7042836466 |
| Packer Contact Information | Eagle Network Supply Pvt. Ltd. , Khasra No. 399 Delhi - 110030 ; +91 1143528338 |
| Target Species | Fish |
| UPC | 015568977138 000116046602 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Seachem
- **Liquid Volume:** 250 Millilitres
- **Item Weight:** 249 g
- **Item Form:** Liquid
- **Manufacturer:** AQUATIC REMEDIES, AQUATIC REMEDIES , Reg. Off. #5, South Made Street, Kolathur , Chennai , Tamil Nadu-99 ; +91 7042836466

## Images

![Seachem Laboratories Flourish Potassium Plant Supplement, 250ml - Image 1](https://m.media-amazon.com/images/I/51mOdi91cQL.jpg)
![Seachem Laboratories Flourish Potassium Plant Supplement, 250ml - Image 2](https://m.media-amazon.com/images/I/7176L3ysH8L.jpg)
![Seachem Laboratories Flourish Potassium Plant Supplement, 250ml - Image 3](https://m.media-amazon.com/images/I/71+Qlx3USVL.jpg)
![Seachem Laboratories Flourish Potassium Plant Supplement, 250ml - Image 4](https://m.media-amazon.com/images/I/71Q77pgFciL.jpg)
![Seachem Laboratories Flourish Potassium Plant Supplement, 250ml - Image 5](https://m.media-amazon.com/images/I/91HLzGK9DGL.jpg)

## Questions & Answers

**Q: Is this safe for bettas?**
A: Yes! At the moment, my lonely Betta has been living in a heavily planted 40 gallon tank with some trumpet snails. I have been using only seachem products and they have not  not affected him  nor the snails, negatively. However use caution when dosing - follow directions. 
If tank isn’t heavily planted I would half the doses...

**Q: Can I use flourish potassium on hibiscus plants?**
A: Would work on any plants I would think.

**Q: How many ml do i use for a 72 gal and a 75 gal tank?**
A: 10 ml per 60 gal. 2 - 3 times a week per the instructions.

**Q: Will it work on watermelons**
A: This product is intended for aquarium use. I suppose it would work in a garden scenario, but is expensive by comparison to garden fertilizers (which are great for plants, but generally kill fish if you put them in an aquarium).

## Customer Reviews

### ⭐⭐⭐⭐⭐ It’s saved my Java Ferns!
*by G***S on 25 October 2018*

The seller that I purchased the bottle from was Sai Aqua World and they had sent me a genuine and original product. Yes there was some crusty residue around the cap but this isn’t due to a leak from the bottle. Any Seachem product you buy in India must contain the importers hologram & importers label (which has the date of import, importers email and phone number with a proper bar code). I’m very happy with my purchase and that it is an original from the seller that I purchased. This product itself is excellent, any planted tank needs an NPK (nitrogen, phosphorus, potassium) based substrate or fertiliser. Fish waste/poop provides the N & P that aquatic plants need. I have a lot of java fern in my tank whose leaves were blackening due to a lack of K which I was able to dose with this. My plants are thriving now! Thank you so much!

### ⭐⭐⭐⭐⭐ Simply best fertilizer
*by P***R on 6 October 2020*

Seachem is the best fertilizer you can get in our hobby.

### ⭐⭐⭐⭐⭐ Greay
*by B***N on 16 March 2018*

Great product, using more than 6 yrs now..dose low thats the key.

## Frequently Bought Together

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

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-23*