Fish farming is known as pisciculture in the academic world. It is a form of aquaculture involving the farming of aquatic organisms like fish, crustaceans, mollusks and aquatic plants. Fish farming involves raising fish commercially in ponds, tanks or enclosures.
There are hundreds of species of fish among which are: sea trout, cyprinids, pangas catfish, freshwater fishes, silver sea bream, common carp, catla, greasy grouper, big head carp, nile tilapia, grass cap etc. but most of them are not suitable for fish farming in Nigeria for instance, either because of their nature or because of low demands in the fish market or profitability of their species.
That is why the most common fish species that fish farmers grow for commercial purpose are carp, salmon, tilapia, and catfish while catfish and tilapia are the most common species in Nigeria fish farming industry.
Meanwhile as a fish farmer, you must ensure that all fish ponds on the farm should be easily accessible for adding inputs and transporting harvested fishes from the pond with relative ease and safety.
see also: Facts about Catfish farming