FW planted nutrients

[FitoPharmer]

I was looking at some picture of nice freshwater tanks again today and I decided to try out some CO2 and fertilizer. I have a Fulval shrimp tank right now. I only have super hardy plants like java moss and fern but even they look sickly.

Are there any places in Canada that sell freshwater fertilizers like this? http://greenleafaquariums.com/aquarium-fertilizer.html
Is Flourish Excel a decent CO2 replacement?
Is there a cheaper generic version of the active ingredients in Flourish Excel?
For my small tank is a yeast CO2 reactor fine or should I look at a pressurized system?

Also if you have a link for planted tanks posting that or PMing me would be greatly appreciated.