The July 2005 stocking was the second stocking of blue catfish at El Dorado. The first stocking was in October 2004 when 12,500 advanced fingerlings (7 to 9 inches in length) were stocked. Since there is a 35-inch minimum length limit on blue catfish at El Dorado, anglers need to be able to correctly identify their catch. Click HERE for tips in properly identifying the catfish you have caught. In the above photo, the yellow tag can be seen just below the dorsal fin of this blue catfish.