---
product_id: 4156359
title: "Flourish Excel 250 ml / 8.5 fl. oz. | Organic Carbon Source for Aquatic Plants"
brand: "seachem"
price: "S$19"
currency: SGD
in_stock: true
category: "Seachem"
url: https://www.desertcart.sg/products/4156359-flourish-excel-250-ml-8-5-fl-oz-organic-carbon
store_origin: SG
region: Singapore
---

# Bioavailable organic carbon source Precise dosing for optimal plant health Iron reduction for better nutrient uptake Flourish Excel 250 ml / 8.5 fl. oz. | Organic Carbon Source for Aquatic Plants

**Brand:** seachem
**Price:** S$19
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquatic garden with the carbon edge every pro aquascaper craves!

## Quick Answers

- **What is this?** Flourish Excel 250 ml / 8.5 fl. oz. | Organic Carbon Source for Aquatic Plants by seachem
- **How much does it cost?** S$19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/4156359-flourish-excel-250-ml-8-5-fl-oz-organic-carbon)

## 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

- • **Instant Carbon Boost:** Delivers bioavailable organic carbon to supercharge aquatic plant growth.
- • **Easy Precision Dosing:** Simple capful measurements ensure perfect carbon levels after water changes or routine maintenance.
- • **Photosynthesis Shortcut:** Bypasses complex carbon chains, feeding plants ready-to-use carbon compounds.
- • **Enhanced Iron Absorption:** Promotes ferrous iron (Fe+2) for maximum nutrient uptake and vibrant greenery.
- • **Trusted Aquarium Essential:** Backed by 4.6-star reviews and decades of proven performance since 2004.

## Overview

Seachem Flourish Excel is a 250 ml liquid organic carbon supplement designed to enhance aquatic plant growth by providing bioavailable carbon and improving iron uptake. Ideal for both initial dosing and maintenance, it supports photosynthesis by delivering ready-to-use carbon compounds, ensuring healthier, more vibrant aquatic plants.

## Description

Seachem Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 250 ml

## Features

- CARBON PRODUCTION: All plants require a source of carbon, and Flourish Excel is a great and convenient source of bioavailable organic carbon.
- IRON PRODUCTION: Flourish Excel also possesses iron reducing properties, thus promoting the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3).
- PHOTOSYNTHESIS: Plants must produce longer chain carbon compounds (photosynthetic intermediates). By dosing with Flourish Excel you bypass the involvement of chain carbon compounds, and introduce the already finished, structurally similar compounds.
- TREATMENT: On initial use or after a major (> 40%) water change, use 1 capful of Flourish Excel (5 mL) for every 40 L (10 US gallons). Thereafter, use 1 capful for every 200 L (50 US gallons) daily or every other day. For smaller dosing please note that each cap thread is approximately 1 mL.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001EUE6SC |
| ASIN  | B001EUE6SC |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #37,729 in Pet Supplies ( See Top 100 in Pet Supplies ) #352 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,460) |
| Date First Available  | June 15, 2004 |
| Department  | Unisex-Adult |
| Global Trade Identification Number | 00000116045605 |
| Item Form | Liquid |
| Item Type Name | Aquarium Water Treatments |
| Item Weight | 8.8 ounces |
| Item model number  | 456 |
| Liquid Volume | 250 ml |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer  | Seachem Laboratories, Inc. |
| Manufacturer Part Number | 456 |
| Manufacturer recommended age  | 1 month and up |
| Model Number | 456 |
| Pet Type | Fish |
| Product Dimensions  | 4.9 x 2.4 x 2.2 inches; 8.8 ounces |
| Target Species | Fish |
| UPC | 780231504224 000116045605 |
| Unit Count | 1 Count |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Seachem
- **Item Form:** Liquid
- **Item Weight:** 8.8 ounces
- **Liquid Volume:** 250 ml
- **Number of Packs:** 1

## Images

![Flourish Excel 250 ml / 8.5 fl. oz. | Organic Carbon Source for Aquatic Plants - Image 1](https://m.media-amazon.com/images/I/510f5gSD3nL.jpg)

## Available Options

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

## Frequently Bought Together

- Seachem Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 250 ml
- Seachem Flourish Freshwater Plant Supplement - Aquarium Element and Nutrient Blend 250 ml
- Seachem Flourish Tabs Growth Supplement - Aquatic Plant Stimulant 40 ct

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-08-13*