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SEACHEM Flourish Excel (250ml,500ml)

SEACHEM Flourish Excel (250ml,500ml)

Regular price $14.40 SGD
Regular price Sale price $14.40 SGD
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  • Natural organic carbon
  • A great alternative to CO2 cylinders
  • Promotes plant photosynthesis
  • Reliable source of carbon for planted tank

All plants require a source of carbon, which is why planted tanks require a reliable CO2 source. It is not enough to depend on atmospheric carbon dioxide to naturally dissolve at the water suface.

Seachem Flourish Excel is an excellent alternative to CO2 gas injection. Planted aquarium hobbyists will love the ease of supplementing their aquatic plants by simply adding Seachem Flourish Excel into the tank.

Flourish Excel contains natural organic carbon and is a reliable source of CO2 for planted tanks. The carbon is readily absorbed by plants for photosynthesis.

Bioavailable Carbon Source

The key benefit of Seachem Flourish Excel is that it is a source of bioavailable organic carbon for aquatic plants. The carbon molecules in Seachem Flourish Excel is readily absorbed by plants for photosynthesis benefits.


The benefits of Seachem Flourish Excel are:

  • Natural organic carbon
  • Ensures optimal photosynthesis in plants
  • Restores aquatic plants to healthy state
  • Ensures a beautiful planted aquarium
  • Non-toxic, safe for plants

CO2 for Planted Tanks

The reason plants need CO2 (carbon dioxide) is to produce longer chain carbon compounds also known as photosynthetic intermediates. Photosynthetic intermediates includes compounds such as ribulose 1,5-bisphosphate, and 2-carboxy-3-keto-D-arabinitol 1,5 bisphosphate.

Although the names are complicated, the structures are quite simple (5 carbon chains). Seachem Flourish Excel does not contain these specific compounds per se, but one that is quite similar.

By dosing with Seachem Flourish Excel, you bypass the involvement of CO2 and introduce the already finished, structurally similar compounds. It is in its structural similarity that Seachem Flourish Excel is able to be utilised in the carbon chain building process of photosynthesis.

Simple chemical or enzymatic steps can easily convert it to any one to any one of the above named compounds (or a variety of others).

How to Use

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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