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What do these fish look like?
Blue catfish can grow quite large. They are known for weighing 15 to 20 pounds, but it's not incredibly uncommon to see blue catfish that are much larger. The largest such fish on record is one that weighed 102 pounds! The blue catfish has deep upper jaws that stick out well past their lower jaws. It is normally blue to gray in color (thus, its name), and has long narrow pointed fins. Their tails are usually forked.

How do they behave?
The blue catfish spawns in the middle of summer. The males and females build nests for their eggs and like to take care of their eggs. Blue catfish eggs are quite a delicacy for predators, because they're so hard to get ahold of. The parents are initially protective of their offspring. Females typically lay thousands of eggs each season, depending on the size of the mother. Once the eggs hatch, the young typically go their own way.

What else should you know about them?
Blue catfish generally are individualists. They don't need to be around other fish of their type in order to be happy. Because of their size, they are often feared by many other types of fish. They rarely have trouble finding meals, and like to eat other fish.
Blue catfish are excellent food for humans when they're caught in clear waters. They are healthiest when living in non-cloudy and natural freshwater surroundings. They are also known as the great forktail cat or the chucklehead, but their official name is the blue catfish.