cod

It is extremely rare for the worm to effect the human that eats it. For one the worm i killed if the fish is even semi cooked. For another thing the human intestine is a harsh place that most parasites can not thrive in. People eat the Cod worm all the time without realizing it and never get sick. Many times if you catch the fish yourself and allow it to rest on the counter before cooking the worm will remove itself. The fish is fine to eat either way as long as you cook it past 140 degrees which you should anyway unless it is sushi grade and in that case there would rarely be a worm.

They will eat blood worm or small yabbies, which can be purchased from most aquariums.

Cod are bottom feeding fish that live in the ocean. They are one of the main consumers of Zooplankton as well as worm, squid and small fish.

The collective nouns for cod are a school of cod and a lap of cod.