As far as I can gather, they simply out-grow anything that is likely to eat them.
it hides in trees
they como them selves
yes they did discover the blue catfish
The only catfish I would try to keep with large cichlids is something that grows large and can defend itself like a Plecostomus. Don't expect any catfish to eat rubbish or poo. They won't.
Yes. The blue catfish is found in many states, including Michigan.
Unless it is a localized indigenous name, (common in the American South) they are known (properly) as "Blue Catfish", a specific species of catfish.
Mainly by flight, but could be dangerous with that long, powerful, stabbing beak.
A Neon Blue Guppy doesn't really defend its self it usually hides.
It eats fish
A flower may have thorns such as a rose does enabling it to passively defend itself .
it kill itself
Blue catfish are the largest American catfish.Found in a variety of habitats,they can grow over 100 pounds!They eat mostly fish,but will take a variety of baits,anything with a smell.I saw a man catching them on chunks of soap!Blue cats are powerful fish,and fight great when hooked.They spawn in spring,and the young resemble tadpoles.