The most accurate test is definitely the smell test. If raw chicken smells like fish, chances are it hasn't been properly stored and it has gone bad. Also, if it smells fishy, it's no wonder the chicken tastes fishy, as well.

Can you eat chicken that smells like fish?

A telltale sign of bad chicken is a foul smell. Raw, fresh chicken will have a very mild smell or none at all. If your chicken has a very apparent smell, such as a sour or sulfur-like smell similar to rotten eggs, throw it out. However, you should never rely on smell alone to determine if chicken is safe to eat.

Does chicken taste like fish when off?

Your chicken may taste like fish for a few different reasons, but one of the commonest is that the chicken has gone bad and is no longer safe to eat. Bad meat can take on all kinds of funny tastes, and a fishy flavor is often a sign that it is no longer fresh enough to consume.