Liquid nutrient for lush and healthy aquarium plants
Excellent source of bio-available, organic carbon for plants
Easy-to-use and convenient alternative to CO2 injection
Flourish Excel is a simple source of carbon for aiding growth of aquatic plants. Designed to make plant-keeping easier without carbon dioxide injection. Use it alone, or if you choose, with carbon dioxide injection. Keeps iron in a reduced state that's easily utilized by plants. 1 ml treats 10 gallons. Recommended for use on a daily to every other day basis.
Please click on "More Information" for recommended dosage.
Recommended Dosage: 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. Do not overdose.
Is Flourish Excel a replacement for CO2 in a planted aquarium?
Yes and no. It provides the same benefit as CO2, i.e. it provides the plants with a source of carbon for growth just as CO2 provides them with carbon. However CO2 by itself will give you quantitatively more growth than Excel by itself, although Excel does provide a substantial amount in comparison. If CO2 is a 10, Excel is a 6-7. Using both together provides additional benefit. One of the advantages of the Excel is no up front equipment costs and complexity of valves, hoses and regulators, etc.
Is it better to add Flourish Excel at night or in the morning based upon plant carbon uptake physiology?
Carbon intake is a function of photosynthesis. Based on this, it would be ideal to dose Flourish Excel during the day. But given that Flourish Excel can stay complexed as a carbon source for up to 24 hours before it dissipates, you can dose at any time of the day and the product will be available for the next 24 hours. Flourish Excel is not carbon dioxide and there is no impact on pH using Flourish Excel.
Will an airstone or surface agitation decrease the effectiveness of Excel as it would decrease the effectiveness of CO2 injection? What effect would it have on Excel?
An airstone or other surface agitation will not impact the effectiveness of Flourish Excel. Flourish Excel is not CO2, it is simply a readily available source of carbon. This is an intermediate source and more readily available than CO2 and will not interfere with the uptake of CO2 as a carbon source.
I've been using Flourish Excel for four days, and I've noticed that my Anacharis seems to be dying, while my other plants are doing fine. Why is this?
Anacharis is a particularly sensitive species (known to be sensitive to high temperature, trace copper, formaldehyde etc.). It is also sensitive to Flourish Excel. If you have Anacharis in an aquarium in which you are dosing Flourish Excel we recommend using Flourish Excel every other day rather than daily.
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