That all depends upon how much time and money you wish to spend on them, why you want them and what you want from them.
Loaches are freshwater fish, for example, the clown loach which is a freshwater fish.
Worms..They will catch a variety of species.
It depends on which fish it
They are freshwater fish.
Catfish - with french fries and hushpuppies
Yes, they need Salt and Pepper, but a good cajun spice mix is best.
Redfish are fresh water
Piranhas are freshwater fish, living in the Amazon basin.Actually they are both freshwater and salt.... Mostly freshwater though!
A type of Freshwater Fish
Yes Snakeheads are freshwater fish.
Freshwater fish derive small amounts of salt from their freshwater habitat. If you place a freshwater fish in saltwater, the difference in habitat will cause the fish to burst.
Because saltwater fish can only breathe in saltwater (as in the ocean) and freshwater fish can only breathe in freshwater (as in tap water.)