Seachem Flourish Excel
All plants require a source of carbon, and Flourish Excel is a simple source of readily available organic carbon that directly benefits the growth and overall development of a wide variety of aquatic plants. Typically carbon comes from CO2, but it can also be derived from simple organic compounds such as photosynthetic intermediates, which are found in this formula.
Using Flourish Excel does not negate the benefits of CO2 injection. In fact, because the processes surrounding the production and development of photosynthetic intermediates occur simultaneously with CO2 utilization, aquarists can achieve substantial benefits when using both Seachem Flourish Excel and in-tank CO2 injections together.
| Key Benefits | Application Notes |
|---|---|
| Provides organic carbon for plant growth | Can be used in combination with CO2 systems |
| Supports photosynthetic intermediates | Enhances plant development in low-light or low-CO2 environments |
FAQ
Can Flourish Excel be used with CO2 injection?
Yes, Flourish Excel can be used in combination with CO2 injection. The two sources of carbon work synergistically to support plant growth.
What type of aquatic plants benefit from Flourish Excel?
A wide variety of aquatic plants benefit from Flourish Excel, especially those that require additional organic carbon for healthy growth.
Is Flourish Excel suitable for low-light tanks?
Yes, Flourish Excel is particularly beneficial in low-light tanks where photosynthetic intermediates may be limited.



Penelope Lyman –
I’ve been using Flourish Excel in my planted tank for three months. My plants are growing faster and the leaves are fuller. I run CO2, and the combination has made a noticeable difference in plant health.
Ian Forsyth –
The product works well with my existing CO2 setup. I noticed improved growth in my stem plants and floating vegetation. It’s easy to dose and doesn’t cause any issues in the water chemistry.
Sue Anderson –
My tank has been struggling with plant development in low light. After adding Flourish Excel, the plants started to thrive. I’m now confident in using it as part of my routine.