---
product_id: 6627539
title: "Seachem Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 100 ml"
brand: "seachem"
price: "B/.35"
currency: PAB
in_stock: true
url: https://www.desertcart.com.pa/products/6627539-seachem-flourish-excel-bioavailable-carbon-organic-carbon-source-for-aquatic
store_origin: PA
region: Panama
---

# Bioavailable Carbon Fish Safe 100 ml Volume Seachem Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 100 ml

**Brand:** seachem
**Price:** B/.35
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Plant Paradise with Flourish Excel!

## Quick Answers

- **What is this?** Seachem Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 100 ml by seachem
- **How much does it cost?** B/.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/6627539-seachem-flourish-excel-bioavailable-carbon-organic-carbon-source-for-aquatic)

## 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

- • **🌞 Photosynthesis Simplified:** Bypass complex carbon chains and provide ready-to-use compounds for your aquatic plants.
- • **🌿 Boost Your Aquatic Garden:** Unlock the secret to lush, thriving plants with Flourish Excel's organic carbon source.
- • **🔄 Iron Utilization Enhanced:** Promotes the ferrous state of iron for optimal plant absorption and growth.
- • **⚙️ Precision Dosing Made Easy:** Simple capful measurements ensure your plants get the right nutrients without the guesswork.
- • **🛡️ Safe for All Aquatic Life:** Rest easy knowing Flourish Excel is fish-friendly, making it perfect for diverse aquariums.

## Overview

Seachem Flourish Excel is a 100 ml liquid organic carbon source designed to enhance the growth of aquatic plants. It provides bioavailable carbon, promotes iron utilization, and simplifies the photosynthesis process, all while being safe for fish. Ideal for aquarium enthusiasts looking to boost their aquatic gardens.

## Description

Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 100 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.
- SAFETY: Flourish Excel is completely safe for fish, however if you have Anacharis in an aquarium in which you are dosing Flourish Excel, then it is recommended to use it every other day rather than daily.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 5.12 ounces |
| Liquid Volume | 100 Milliliters |
| Allergen Information | Abalone Free |
| Target Species | Fish |
| Item Form | Liquid |

## Product Details

- **Brand:** Seachem
- **Liquid Volume:** 100 Milliliters
- **Item Weight:** 100 Grams
- **Item Form:** Liquid
- **Manufacturer:** Seachem Laboratories, Inc.

## Images

![Seachem Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 100 ml - Image 1](https://m.media-amazon.com/images/I/610V-WB-EqL.jpg)

## Available Options

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

## Questions & Answers

**Q: What causes this product to kill algae, and does it kill anything else (like beneficial bacteria)?**
A: I bought the Seachem Flourish Excel because it seems to be the best solution to a Black Beard Algae problem I'm having, and after studying what it does, and how it does it, I too was worried about the Beneficial Bacteria in my 2 large canister filters.Couldn't find a direct answer to that question, so I sent an e-mail directly to Seachem Laboratories. Here is my question to them and their reply......
Message: I have a 72 gal heavily planted community tank and am having an outbreak of Black Beard Algae. I purchased your product as it seems the best solution to the problem, but I need a question answered before I can use your product. I now understand how your product works, but will this product also kill off the Beneficial Bacteria inside the Seachem Matrix Bio-Media of my 2 large canister filters?! Crashing the cycle in my tank is not an option. Is this product (Flourish Excel) safe to use for the bacteria that maintains the nitrogen cycle of my tank, or will it kill the bacteria in my filter media along with the Black Beard Algae and crash the nitrogen cycle of my tank? Need a straight answer, please, Thank You
Seachem Support 10304 (Seachem Laboratories)
Sep 23, 2022, 16:31 ADT
Hi there, thanks for reaching out! 
 No, Excel will not affect your biological filtration if dosed appropriately. 
 Hope this helps! 
Seachem Support 10304
Needless to say, I am very relieved, and pleased. Now I can start the process of getting rid of that Black Beard Algae and not worry about crashing my nitrogen cycle. 2 Thumbs Up to Seachem Laboratories!

**Q: are they copper free?**
A: No. They contain 0.001% copper. Though people have used them in shrimp tanks without a problem, others have had shrimp die, particularly if the tablet got stirred up from the substrate (rescaping, fish burrowing, etc). If there's a chance of your substrate being disturbed, I'd recommend going with API Root Tabs instead, as they do not contain copper.

**Q: How I use this for my tank 20 gallons**
A: Per the instructions:
"On initial use or after a major (> 40%) water change, use 1 capful (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."
1 cap = 5ml
1 cap for every 50 gallon equates to 1 ml for every 10 gallons or 2 ml for 20 gallons.

**Q: Is the product compatible with freshwater invertebrates, like amano shrimp?**
A: I use this product on a regular basis and I have snails and shrimp in my tank.  No problems.

## Frequently Bought Together

- Seachem Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 100 ml
- Seachem Flourish Freshwater Plant Supplement - Aquarium Element and Nutrient Blend 250 ml
- Seachem Flourish Tabs Growth Supplement - Aquatic Plant Stimulant 10 ct

---

## 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.com.pa/products/6627539-seachem-flourish-excel-bioavailable-carbon-organic-carbon-source-for-aquatic](https://www.desertcart.com.pa/products/6627539-seachem-flourish-excel-bioavailable-carbon-organic-carbon-source-for-aquatic)

---

*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-03-02*