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The Acid Raion (Raion carbonica) is a colony organism — thousands of tiny worms sharing a single sponge-like membrane — that uses weak acid secretions to digest food. Passive in behavior but not passive in defense: disturbing the side pouches triggers a toxic fume response. The correct harvest technique is to remove the side pouches with the Survival Multitool first, then pick the central Medical Gel Sac safely. Found in the Shallows, notably in the cave directly beneath the starting Lifepod.

Where to Find

Shallows Passive

Stats

Scientific Name Raion carbonica

Notes

Drop: Medical Gel Sac (+10 HP; ingredient for Basic/Enhanced First Aid Kit).

Harvest Strategy:

  1. Equip Survival Multitool.
  2. Strip the side pouches (Acidic Raion Pouches) first — this prevents the toxic fume defense.
  3. Pick up the central Medical Gel Sac safely.

Tips:

  • The cave directly beneath the Lifepod always has an Acid Raion colony — your first Medical Gel Sac is effectively guaranteed.
  • Acidic Raion Pouches are used in Basic Battery crafting (2 Copper + 1 Pouch) — harvest those too.

Sources