FAQ: Is it better to use Seachem Flourish Excel™ in the morning or in the night based on plant uptake physiology

A: 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™.