Man, I've been on some zebra beds for years that are thick. After the spawn, the catfish fatten up for winter big time on them. It's the only place I run my lines and nets this time of year. On my lines, every single hook is either loaded with 'em or has a fish on it. I've found several dozen zebra mussel beds between Palarm Creek and Wrightsville. A couple are 300-400 feet wide and over 1000 yards long. Every fish's guts loaded to the brim coming out their ***.