---
product_id: 256598941
title: "Seachem Flourish Potassium Supplement, 250 ml"
brand: "seachem"
price: "€ 11.75"
currency: EUR
in_stock: true
category: "Seachem"
url: https://www.desertcart.hr/products/256598941-seachem-flourish-potassium-supplement-250-ml
store_origin: HR
region: Croatia
---

# Boosts vigorous aquatic plant growth 50,000 mg/L potassium concentration Compact 250 ml bottle size Seachem Flourish Potassium Supplement, 250 ml

**Brand:** seachem
**Price:** € 11.75
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock the secret to unstoppable aquatic growth!

## Quick Answers

- **What is this?** Seachem Flourish Potassium Supplement, 250 ml by seachem
- **How much does it cost?** € 11.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/256598941-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

- • **Growth Guardian:** Prevents potassium depletion that causes yellowing leaves, keeping your aquatic plants lush and vibrant.
- • **Compact & Convenient:** 250 ml BPA-free liquid formula fits perfectly in your aquarium care kit without clutter.
- • **Potassium Powerhouse:** Delivers a potent 50,000 mg/L potassium boost to supercharge your planted aquarium’s growth.
- • **Mineral Balance Master:** Ideal for low-mineral or fast-growing tanks where potassium can become the growth-limiting factor.
- • **All Life Stages Friendly:** Safe and effective for all aquatic plant life stages, ensuring consistent health and vitality.

## Overview

SeachemFlourish Potassium Supplement is a concentrated 250 ml liquid formula delivering 50,000 mg/L potassium, essential for maintaining vigorous growth in planted aquariums. It prevents potassium depletion, a common cause of yellowing leaves, especially in fast-growing or low-mineral water systems. Safe for all plant life stages and housed in a compact BPA-free bottle, it’s the must-have nutrient boost for thriving aquatic greenery.

## Description

Seachem Flourish Potassium Supplement, 250 ml : desertcart.ae: Pet Supplies

## Features

- 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.
- Volume : 250 ml
- Details : Flourish Potassium contains 50,000 mg/L of potassium suitable for the natural planted aquarium

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 12.45 x 6.1 x 5.59 cm; 249.48 g |
| Item model number | 466 |
| Pet Life Stage | All Life Stages |
| Item Form | Liquid |
| Allergen Information | BPA-Free |
| Color | standard |
| Size | __NO_VALUE__ |
| Volume | 250 Milliliters |
| Quantity | 1 |
| Specific Uses | Active |
| batteries required | No |
| Batteries Included | No |
| External Testing Certification | Não aplicável |
| Item Weight | 249 g |

## Product Details

- **Brand:** Seachem
- **Item form:** Liquid
- **Item weight:** 0.55 Pounds
- **Liquid volume:** 250 Milliliters
- **Manufacturer:** Seachem

## Images

![Seachem Flourish Potassium Supplement, 250 ml - Image 1](https://m.media-amazon.com/images/I/51R0e6x0CsL.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).

## Frequently Bought Together

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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/256598941-seachem-flourish-potassium-supplement-250-ml](https://www.desertcart.hr/products/256598941-seachem-flourish-potassium-supplement-250-ml)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-09*