No, catfish is not a tropical fish.
No. Swai is a type of catfish, and catfish are not a kosher species of fish.
Base at my researches the catfish and mudfish are the same
no ifs a fish.
Some catfish are commercially fatmed, but there are other "commercial fish" that are farmed.
catfish in china catfish in china catfish in china
they eat lots of types of fish like lots of diffent kinds
Yes
a catfish
No it is a fish
catfish
There are many species of fish that are called "catfish'. The thing that gives them this name is the feelers/whiskers around the fishes mouth. So I guess the answer to your question is. A catfish is a fish that has what appears to be whiskers.