Seachem Flourish Excel (500 ml) is a source of bioavailable organic carbon. Plants require a source of carbon which is usually obtained from CO2, but, may also be acquired from simple organic compounds (such as photosynthetic intermediates).
Flourish Excel can be used alone or in conjunction with CO2 injection. Further benefits include iron reducing properties which promote the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3).
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.
DISCLAIMER: The results described on the testimonials on this site, are the individual experiences and personal opinions of those who have purchased and used the products. These testimonials are not intended to make any claims that the products can be used to diagnose, treat, mitigate, cure or prevent any disease or medical condition.Click here to see all reviews
Helps plants and kills algae by Jules03/15/2012
Good plant growth booster if you run a low-tech system and don't dose CO2 - non-advertised beneficial side effect is that active ingredient is also an algaecide.
Wouldn't use anything else by Crunch from Oregon05/30/2013
Flourish is a must for the heavily planted tank like mine!!
Easier than DIY CO2 by Ray from Atlanta, Ga.05/09/2013
A great purchase at a low price. Plants are healthy and happy. Easier than setting up reg. CO2 cylinders or DIY units - just shake an pour.