The Brown Bullhead (Ameiurus nebulosus) is a medium-sized catfish, usually around 8-14 inches long. It has a mottled brown appearance, a squared tail, and whisker-like barbels around it... The Brown Bullhead (Ameiurus nebulosus) is a medium-sized catfish, usually around 8-14 inches long. It has a mottled brown appearance, a squared tail, and whisker-like barbels around its mouth. Brown Bullheads thrive in muddy or sandy bottoms of ponds, lakes, and slow rivers. They are opportunistic feeders, eating plants, insects, fish, and even detritus. This species is known for its resilience and adaptability to various environmental conditions.Click here to read more about Brown Bullhead.