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Subnautica 2 Acid Raion Guide

Where to find Acid Raion in Subnautica 2, how to scan or harvest it, and when it matters for routes, resources, or adaptations.

Acid Raion quick answer

Acid Raion is a resource flora entry associated with Blighted Coral. Treat it as a route marker first and a harvest target second; many bad plant routes start when players gather before they know the recipe need.

FieldNotes
Main regionBlighted Coral
TypeResource flora
Scan or harvest methodScan and collect pouches only with a clear exit.
Main useAcidic Raion Pouch, batteries, acid chain
RiskMedium

Location and route

Approach Acid Raion from a known oxygen point, scan the plant, then check the floor, walls, and nearby fauna before harvesting. If the plant sits in Blighted Coral hazards, mark it and return with the right tool instead of forcing the route.

Uses and unlock value

The practical value is acidic raion pouch, batteries, acid chain. If it supports a recipe, collect only the amount needed for the next craft. If it is a landmark, use it to label the route and connect it to the nearest biome or resource loop.

Risk and scan notes

Do not farm it when inventory is already full. In co-op, call out the plant name, region, and nearest return marker so teammates can reuse the route without duplicating the scouting work.

What to do next

Use this page with Flora List and All Plants, Resource Locations, and Interactive Map and All Locations.

Early Access note

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