Flourish Excel - 16.9 oz.

SKU: 198601
Manufacturer: Seachem
MPN: 453

Shop in Retail Store

Ship to Home

Ship to Lancaster, Pa Store

Inventory is real time and can be impacted at any time.


Flourish Excel is a simple source of readily available organic carbon. All plants require a source of carbon. This is typically obtained from CO2, but, may also be obtained via relatively simple organic compounds (such as photosynthetic intermediates). Since both processes occur simultaneously one can derive a substantial benefit with the use of Flourish Excel either alone or in conjunction with CO2 injection. Flourish Excel also has iron reducing properties which promote the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3) Flourish Excel is recommended for use with the entire family of Flourish products as well as our gravel, Flourite, our GH builder, Equilibrium, and our non-phosphate buffers, Acid Buffer and Alkaline Buffer.

500 mL will treat 100 gallons for 1-2 months.


Internal Id


Ingredients: Aqueous solution of polycycloglutaracetal.


Directions: On initial use or after a major (> 40%) water change, use 1 capful (5 mL) for every 40 L (10 gallons*). Thereafter use 1 capful for every 200 L (50 gallons*) daily or every other day. Dosing may be slowly increased in high-growth aquariums. For smaller dosing please note that each cap thread is approximately 1 mL.

Ratings & Reviews

2 reviews

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews



have a low tech tank, this help the plants without CO2 injection, haven't use it for long, but see new leaf growing ~ fast, will stick with low tech and use this, low maintenance. tfp price is great, will keep coming back, thanks

Excel for my low tech tank


Does seem to help with growth in my tank. I notice perling from time to time. If I recall that's a good sign. Possibly helps with keeping algae tamped down. Easy to use, non-toxic to fish when used as directed.