Schools of small fish can be seen along warm coastal areas, such as in Kryta or Mehtani Keys. Larger fish can be seen in further out in the water in some areas, such as Tears of the Fallen. Despite their monstrous appearance, these fish are ambient animals and cannot be interacted with in any way.
- The larger fish seem to only swim in a loop around the same area of the sea.
- Koi fish can be seen in the fountain of Raisu Pavilion, and also are ambient.
- Smaller fish can also be seen in Pre-Searing, in one of the lakes near the fishing villages. These, too, are ambient and cannot be interacted with.