I stumbled across this guy a while back and have been enjoying his aquarium related DIY every since.

Check out this link for some amazing and simple info on making your own fish food. he covers his discus recipe in detail so it's well worth the watch. he covers nutritional info which is great so that you actually understand why you are adding certain elements.

http://www.youtube.com/watch?v=rXQS9...em-subs_digest

there is a lot of crap on youtube but this guy has some great videos that i think a lot of people will get a lot out of

Cheers