SUBNAUTICA 2 GUIDEDeep-sea field manual
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Spinefish (Subnautica)

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The Spinefish is a small, passive herbivore found in the Blood Kelp Zone and Lost River. It serves as an edible food source and bioreactor fuel, distinguished by its translucent body and rib-like markings.

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Spinefish (Subnautica)

Spinefish

The Spinefish is a small, passive relative of the Hoopfish. It resides in the Blood Kelp Zone and the Lost River. Its in-game description states that it uses its appearance to hide from predators by playing dead.

Like Hoopfish, Spinefish are cathemeral and easy to catch, having moderate Food values.

Data Box

AttributeDetails
CategoryFauna / Herbivores
AttitudePassive
Health20
Size1
BiomesBlood Kelp Zone, Blood Kelp Caves, Bone Fields Caves, Lost River, Bone Fields, Ghost Canyon, Ghost Forest, Junction, Mountains Corridor
Active DuringCathemeral (Day and Night)
Bioreactor Energy+210 Energy
Debug Spawn IDspinefish

Appearance

The Spinefish closely resembles a Hoopfish in form, but has drastic differences in colouration:

  • Much of the body is translucent, with many white stripes arranged in a manner that resembles a ribcage. It also features small red spots around its eyes and near its tail.
  • Its eyes are yellowish green in color, and its caudal fin has a dull red hue.

Front view Side profile Dorsal view Bioluminescence

Behavior

Spinefish aimlessly swim around and will flee if approached by the player or a shark classified fauna. Spinefish are curious and will swim towards dead fauna and trap classified fauna. Spinefish become last active at night, making them easier to catch.

Uses in Crafting

Cooked Spinefish

Spinefish → Fabricator → Cooked Spinefish

  • Description: Never eat the antennae.
  • Food: +23
  • Water: +3
  • Debug Spawn ID: cookedspinefish

Cured Spinefish

Spinefish + Salt Deposit → Cured Spinefish

  • Description: Entirely bland. Dehydrating, but keeps well.
  • Food: +23
  • Water: -2
  • Debug Spawn ID: curedspinefish

Energy Value

Bioreactor × 210 Energy

Data Bank Entry

Spinefish Encyclopedia

Spinefish

Small, school-mentality prey fish, closely related to the hoopfish.

  1. Grey Coloration: A combination of near translucent flesh with white, rib-like markings gives this fish a deathly appearance. It takes advantage of this to avoid the attention of its predators.
  2. Behavior: Moves in schools for protection, but will disperse and flee if necessary, whereon those fortunate enough to escape the gaze of their assailants will make for the sea floor and hide amongst the detritus.

Assessment: Edible (low calorie count) Source: Scan Spinefish

A Spinefish held in the player's hand A Spinefish held in the player's hand

A Spinefish in the Blood Kelp Zone A Spinefish in the Blood Kelp Zone

A Spinefish in the Blood Kelp Caves A Spinefish in the Blood Kelp Caves

Spinefish Concept art Spinefish Concept art

Spinefish's model from Sketchfab Spinefish's model from Sketchfab

Trivia

  • Although the databank entry states that Spinefish plays dead by laying on the seabed, this behaviour is absent in-game.
  • The databank entry also shows that the Spinefish is blind.

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