Funny, I found that exact same site. I have been looking into culturing my own copepods for my mandarin. The price of copepods in a bottle is crazy! After my tank crashed I have been attempting to restock my tank. My wife got me a mandarin for my birthday and now I need to make sure he is well feed.
The first thing I started looking for was a way to make sure i could feed the copepods. I went ahead and have setup a, like melev's http://www.melevsreef.com/phytoplankton.html , for phytoplankton, so far so good.
I just set up the 10 gal for the copepods, with the divider, and need to purchase some copepods for starting the culture. From everything I have read so far I am going to go for a mixture of copepods species for the best results.