Ocean animals are adapted to life in what zone

Well, there are three different zones:

sunlight zone: the brightest; plants and algae can grow there, home to many ocean animals, and shallowest of zones

twilight zones: dimmer and colder water; plants an algae can not liver there; ocean animals that liver here live in darkness and many have big eyes

then there is the midnight zone: super cold and pitch black, food is scarce and few ocean animals liver there.

my best answer would be the sunlight zone ...