yeah the grain chum is supposed to be the hottest chum...
whatever grain you use.....you let it ferment in the sun for about a week or two
until it smells real nasty.... make sure you have tight fitting lids
because you don't want to spill this stuff where you have to live
like in a car or a boat....
then dump it in gingerly here and there...@ your spot....
then you can use your regular catfish baits because the catfish
will definitely be
hanging around and will be HUNGRY
here's a link for ya
http://www.whiskerkitty.com/Chumming.html