Fish farming or raising the fish in tanks or ponds is called

Concept: Commercial farming or breeding of fish in fish tanks or artificial enclosures such as fish ponds is known as pisciculture.

It is a type of aquaculture that involves the regulated cultivation and harvesting of aquatic animals such as fish, crustaceans, mollusks, and other organisms in a natural or artificial environment. 

Hence, option 3 is correct.