---
product_id: 48552918
title: "Seachem Flourish Phosphorous Supplement, 500 ml"
brand: "seachem"
price: "฿3335"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/48552918-seachem-flourish-phosphorous-supplement-500-ml
store_origin: TH
region: Thailand
---

# optimal plant growth support 4500 mg/L potassium phosphate precise phosphate dosing Seachem Flourish Phosphorous Supplement, 500 ml

**Brand:** seachem
**Price:** ฿3335
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your planted aquarium game with precision phosphorus power!

## Quick Answers

- **What is this?** Seachem Flourish Phosphorous Supplement, 500 ml by seachem
- **How much does it cost?** ฿3335 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/48552918-seachem-flourish-phosphorous-supplement-500-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

- • **Clean & Safe:** Abalone-free, non-toxic supplement designed for a healthy aquarium ecosystem
- • **Effortless Dosing:** Takes the guesswork out of phosphate management for thriving aquascapes
- • **Liquid Convenience:** Easy-to-use 500 ml liquid form for seamless integration into your routine
- • **Universal Compatibility:** Ideal for all life stages of aquatic plants and fish
- • **Precision Phosphorus Boost:** Safe 4500 mg/L potassium phosphate formula ensures consistent nutrient delivery

## Overview

SeachemFlourish Phosphorous Supplement is a 500 ml liquid solution delivering a safe and potent 4500 mg/L potassium phosphate dose, designed to optimize aquatic plant growth and simplify phosphate dosing in planted aquariums. Suitable for all life stages, it ensures a balanced, thriving ecosystem without guesswork.

## Description

Product Description               Seachem Flourish Phosphorous 500Ml                  Directions               Add 1 ml of Flourish Phosphorus to every 40 litres aquarium water once a week. Shake well before use. Do not exceed the recommended dose.               
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## Features

- Phosphorus supplement for the planted aquarium
- A safe 4500 mg/L solution of potassium phosphate
- Takes the guesswork out of phosphate dosing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Fish |
| Product Dimensions | 19.3 x 5.59 x 3.56 cm; 521.63 g |
| Item model number | 193 |
| Pet Life Stage | All Life Stages |
| Item Form | Liquid |
| Allergen Information | Abalone Free |
| Size | 500 ml (Pack of 1) |
| Volume | 500 Millilitres |
| Number of Items | 1 |
| Quantity | 1 |
| Batteries required | No |
| Batteries Included | No |
| External Testing Certification | Não aplicável |
| EU Energy Efficiency Label | A+++ |
| Item Weight | 522 g |

## Product Details

- **Brand:** Seachem
- **Liquid volume:** 500 Millilitres
- **Item weight:** 1.15 Pounds
- **Item form:** Liquid
- **Manufacturer:** Seachem

## Images

![Seachem Flourish Phosphorous Supplement, 500 ml - Image 1](https://m.media-amazon.com/images/I/517Gt4xFYSS.jpg)

## Available Options

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

## Questions & Answers

**Q: My tap water already has phosphate in it. Is there any need for this also?**
A: Yeah ,I guess so. If you have enough  phosphate, your plants are growing & there are no algae blooms that should be good, I try to keep my levels at 1.0 mg/l. This product is also nitrite free ,I think it's wise to take something like that into consideration. I hope this helps you out.

**Q: Can you please advise how much you dose per week in your planted tank?**
A: No, this is for freshwater plants.

**Q: Can this be used house plants?**
A: It can but it will need to be diluted as it's in a concentrated form. I'd try 1ml per gallon and see the result. If the plant tips appear to be burnt, I'd do half a ml. If it seems fine, try increasing to 1.5ml/g. Hope this helps.

**Q: Can this product be used in a saltwater tank for the plants**
A: Yes it can however brightwell makes a macro nutrient designed just for reef plants like chaeto, algae, and sea grass.

## Frequently Bought Together

- Seachem Flourish Phosphorus 500ml
- Seachem Flourish Potassium 500ml
- Seachem Flourish Nitrogen 500ml

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-01*