Seachem Flourish Excel Bioavailable Carbon – 100mL
Seachem Flourish Excel is a bioavailable organic carbon source for freshwater planted aquariums. Carbon is one of the most important nutrients aquatic plants need for healthy growth, and Flourish Excel can be used as an alternative to CO₂ injection or alongside CO₂ in planted aquarium setups.
Flourish Excel introduces photosynthetic intermediates that aquatic plants can use, making it a helpful supplement for low-tech planted tanks, beginner aquascapes, and freshwater aquariums with live plants.
Key Features
- Bioavailable organic carbon source for planted aquariums
- Can be used as an alternative to CO₂ injection or in addition to it
- Introduces photosynthetic intermediates for aquatic plants
- Helps support healthy freshwater plant growth
- Great for low-tech planted aquariums
- Useful for beginner planted tank setups
- Pairs well with Seachem Flourish Comprehensive and other planted tank supplements
Recommended Use
- Freshwater planted aquariums
- Low-tech planted tanks
- Aquascapes without CO₂ injection
- Community aquariums with live plants
- Shrimp tanks with live plants when used carefully as directed
- Planted tanks needing additional carbon support
Directions
Shake well before use. Dose carefully and do not overdose.
- Initial Use or Major Water Change: Use 5mL for every 10 US gallons.
- Ongoing Dose: Use 5mL for every 50 US gallons daily or every other day.
- Small Tank Dose: Each cap thread is approximately 1mL.
- Best Practice: Dose consistently and monitor plant and livestock response.
- Important: Do not overdose, especially in smaller aquariums or sensitive planted/shrimp setups.
Product Specifications
- Brand: Seachem
- Product: Flourish Excel
- Size: 100mL / 3.4 fl oz
- UPC: 000116045506
- Water Type: Freshwater
- Use: Bioavailable organic carbon source for planted aquariums
Frequently Asked Questions
What does Seachem Flourish Excel do?
Flourish Excel provides a bioavailable organic carbon source that helps support healthy plant growth in freshwater planted aquariums.
Is Flourish Excel the same as CO₂?
No. Flourish Excel is not injected CO₂, but it can be used as an alternative carbon source or used alongside CO₂ injection in planted aquariums.
Can I use Flourish Excel in a low-tech planted tank?
Yes. Flourish Excel is commonly used in low-tech planted tanks that do not have pressurized CO₂ systems.
How often should I dose Flourish Excel?
After the initial dose or a major water change, dose 5mL per 50 gallons daily or every other day.
Is Flourish Excel safe for shrimp?
Many hobbyists use Flourish Excel in planted shrimp tanks, but it should be dosed carefully and never overdosed. Sensitive shrimp setups should be monitored closely.
Will Flourish Excel get rid of algae?
Flourish Excel is a carbon supplement, not a dedicated algae treatment. Healthy plant growth can help compete with algae, but lighting, nutrients, maintenance, and water quality still need to be balanced.
Can I use Flourish Excel with Seachem Flourish?
Yes. Flourish Excel provides carbon support, while Seachem Flourish Comprehensive provides trace and micro nutrients. Many planted tanks use both as part of a regular routine.
Can I overdose Flourish Excel?
Yes. Do not overdose. Overdosing can stress fish, shrimp, or sensitive plants. Always measure carefully, especially in nano aquariums.
Important Note
This product is intended for ornamental freshwater aquarium use only. Keep out of reach of children. Not for human consumption. Avoid contact with eyes and follow label directions carefully.
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