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Subnautica 2 Radiator Coral Guide

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

Radiator Coral quick answer

Radiator Coral is a coral entry associated with Power Plant, Observatory. 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 regionPower Plant, Observatory
TypeCoral
Scan or harvest methodScan before harvesting or routing around heat/electrical hazards.
Main useResource clue, facility route marker
RiskMedium

Location and route

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

Uses and unlock value

The practical value is resource clue, facility route marker. 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

Popular lookup target; keep exact use notes current. 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.