The hardhead catfish is a common saltwater catfish found along the Atlantic and Gulf coasts of North America. Recognizable by its deeply forked tail, six whisker-like barbels, and three sharp fin spines, this fish is frequently caught from beaches, piers, bridges, bays, and coastal waterways. Hardheads are edible, but many anglers release them because they … Read more
Armored catfish are unusual freshwater fish protected by rows of hard, bony plates instead of ordinary scales. The name commonly refers to suckermouth catfish in the family Loricariidae, including plecos and sailfin catfish. These South American fish are popular in aquariums because they graze on algae and have striking patterns. However, released pets have established … Read more
The red tail catfish is a massive freshwater fish recognized by its broad head, long whiskers, dark body, and bright orange-red tail. Juveniles may look manageable in pet stores, but they grow rapidly and eventually require an enormous custom aquarium or indoor pond. Keeping one successfully demands strong filtration, careful feeding, stable tropical water, and … Read more
Bullhead catfish are hardy freshwater fish recognized by their broad heads, smooth scaleless bodies, whisker-like barbels, and mostly square tail fins. Although smaller than channel and flathead catfish, bullheads are popular among anglers because they are widespread, easy to catch, and often active after dark. Several species occur across North America, including black, brown, and … Read more
Otocinclus catfish are tiny, peaceful freshwater fish valued for their ability to graze on soft algae and biofilm. Commonly called otos, dwarf suckers, or dwarf suckermouth catfish, they are especially popular in planted community aquariums. However, they are more sensitive than their “cleanup fish” reputation suggests. Otos need a mature aquarium, stable water, peaceful companions, … Read more
The wels catfish is a massive freshwater predator native to parts of Europe and western Asia. Recognized by its broad head, long barbels, scaleless body, and enormous mouth, it is among the largest freshwater fish associated with European rivers. Wels catfish inhabit deep rivers, lakes, reservoirs, and backwaters, where they hunt fish and other animals—usually … Read more
The channel catfish is one of North America’s most familiar freshwater fish. Anglers value it for its strong fight, willingness to take many types of bait, and mild-tasting meat. It is also widely raised in ponds and commercial fish farms. Recognizable by its whisker-like barbels, smooth skin, forked tail, and often-spotted body, this adaptable catfish … Read more
The flathead catfish is a powerful freshwater predator recognized by its broad head, projecting lower jaw, mottled body, and square tail. Anglers prize this species for its enormous potential size, strong fight, and preference for live bait. However, its predatory behavior can create ecological problems when it is introduced outside its natural range. This guide … Read more
Catfish are one of the most recognizable freshwater fish groups in the world. They are known for their whisker-like barbels, bottom-feeding habits, and wide range of sizes. Some catfish stay small enough for home aquariums, while others grow into river giants. From channel catfish and blue catfish to cory catfish and redtail catfish, this group … Read more
Blue catfish are large freshwater catfish known for their slate-blue color, forked tail, and powerful body. They are popular with anglers because they grow big, fight hard, and can reach trophy size in major rivers and reservoirs. The blue catfish is native to large river basins in North America, but it has also become invasive … Read more