Wandering Eye Fish

The Wandering Eye Fish is an enemy which spawns while fishing in a Blood Moon. It has a similar appearance to Demon Eyes and Wandering Eyes, it being named after the latter. Instead of severed nerves and blood vessels trailing from its rear, it sports red fins.

The Wandering Eye Fish is incredibly powerful, it can out speed any boot upgrades and will chase and pursue any character it can get to, it will fly off if you hide from it via a block shelter or something like it. It can kill any player in a few hits regardless of any pre-hardmode armor you are wearing.