Flourish Excel - Organic Carbon for Planted Aquariums

Grouped product items
Flourish Excel (250 mL)

SKU: 253066

In stock


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Flourish Excel (500 mL)

SKU: 253067

In stock


- +

Organic Carbon for Planted Aquariums

  • Bioavailable Organic Carbon Source
  • An Alternative to CO2 Injection
  • Available in multiple sizes


All plants require a source of carbon. This is typically obtained from CO2, but it may also be derived from simple organic compounds. CO2 injection and Flourish Excel can be used separately or together. The use of one does not necessarily negate the use of the other. Using both is particularly useful in situations where continuing to add CO2 could result in dangerously low pH levels.


Directions: 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.

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