John Edel stands next to a raft system for plants in the growing room of his aquaponic farm in an old meat-packing plant in the Back of the Yards neighborhood of Chicago, Tuesday, April 5, 2011. The purple lights are LED lights. (Alex Garcia/ Chicago Tribune) B581180348Z.1 ….OUTSIDE TRIBUNE CO.- NO MAGS, NO SALES, NO INTERNET, NO TV, NEW YORK TIMES OUT, CHICAGO OUT, NO DIGITAL MANIPULATION…