Flourish Excel = snake oil?

Update on the Flourish Excel
I've been using it for about 5 weeks and I think that it is works well. I just have floating plants -- Wisteria and watersprite, and they are definitely growing much better than before. But then i've read that they can get access to CO2 from the atmosphere so don't need additional carbon/CO2...
 
If all you have is floating plants, then using Excel is a waste of time.

The biggest problem with Excel is that you have to use it EVERY DAY in order for it to be affective. You cant just use it when you feel like it, or when you remember. You cant use it once or twice a week and expect to see some improvement.

This is why many people get tired of it after a short period of time. It is a pain to dose daily and the affect on the plants is less than spectacular.
 
It's still much easier (for me) than DIY Co2, plus I don't have to worry about OD's with the DIY CO2 (it CAN happen).

I'm going to keep using it. The floating plants have lots of roots and seam to be doing great.
 
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