Just click the link in my first post, click "Shop", then click "Free Sample" in the Categories field, you will need to fill out some basic info (Name, addy, etc., no Credit Card info or anything like that) and thats it.
The only thing I have found about this food that I dislike is that when you crumble it up into smaller pieces it sinks WAY too fast for my taste. The fish don't seem to mind though, after they finish the mouthful they catch on it's way to the bottom they just go down and get more off the bottom.