2. Upsize Your Offerings
Notorious nibblers, little cats are especially adept at cleaning hooks. On some nights, you'll go through a dozen crawlers in a half hour. If your waters are packed with small bullheads, increase your hook and bait size. I prefer a 3/0 or 4/0 long-shank hook and big chunks of bait (e.g., hot dogs).
3. Go Deep**
I've found that the bigger bullheads roam waters that are a foot or two deeper than what the smaller fish prefer. Ideally, try to target the edges of deep-water weed beds--12 to 15 feet. Some anglers have considerable luck by chumming up the bite with cans of tuna packed in oil that are punctured with a nail.