chemical make-up of Kent and SeaChem

Has anyone performed a checmical analysis of the Kent Freshwater
Plant Supplement, Kent Trace Element and SeaChem's new product
Flourish and compared them with the Dupla stuff. I now that George
(or someone) has the make-up for the Dupla stuff. How are other
people making their home-brew stuff?

I'm currently utilizing the Kent stuff, and although I'm not
terribly put out by the expense, the SeaChem product is certainly
much less expensive. I also noticed that Flourish states to
"refrigerate after opening". Why? I've not noticed this on any
other fertilizer product.

Eric Deese
Columbus, Ohio  USA