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Subnautica 2 Crab Feces Guide

How to get Crab Feces in Subnautica 2, where to look, what it is used for, and whether it should be a priority in Early Access.

Crab Feces quick answer

Crab Feces is a Material tied to Coral Crab routes. Get it when the current recipe, route, or base task needs it; do not fill storage with it before the next craft is clear.

FieldNotes
TypeMaterial
Main location or sourceCoral Crab routes
How to get itCollect after confirming recipe demand.
Main usesBiofuel or biological recipes
PriorityLow

Location and route

Plan a short route around Coral Crab routes. Check oxygen, tool power, food, water, and open inventory slots before leaving. When Crab Feces is found, return and sort it with related materials so the next recipe is faster to finish.

Uses and crafting value

Use Crab Feces for biofuel or biological recipes. If it is part of an electronics or ingot chain, keep some raw ingredients unprocessed until the exact recipe is pinned in-game.

Risk and farming notes

Do not waste inventory unless the use is known. Early Access recipes can change, so verify the current Fabricator, Habitat Builder, or module interface before spending rare materials. In co-op, assign one player to resource calls and one to storage so duplicate runs do not waste oxygen.

What to do next

Use this page with List of All Items, Resource Locations, and Crafting Priorities.

Early Access note

This page is current for the May 20, 2026 Early Access build context and should be rechecked after major patches.