Subnautica 2 Acidic Raion Pouch — Location & Uses

Subnautica 2 Acidic Raion Pouch: hand-harvest it from Acid Raion colonies in the Coral Gardens. The core ingredient for Basic Batteries and Mild Acid.

Last updated: 2026-06-16

What is the Acidic Raion Pouch?

The Acidic Raion Pouch is an early-game key resource — a sac of pressurized carbonic acid harvested from colonies of a vermiform creature called the Acid Raion, a new clade with no earthly analog. Its biggest value is as the core ingredient for Basic Batteries, and batteries power nearly every tool you use early on. Stock up early and your progression goes a lot smoother.

💡 It's harvested by hand with no tool required — one of the first resources worth learning to spot.

Where to harvest it

Region: the Coral Gardens — the surface biome (0–200m) where you start.
What to look for: clusters of Acid Raion colonies, the worm-like growths with bulbs; hand-harvest the bulbs to collect the pouches.
The Coral Gardens are the most resource-dense early farming area in the game, so you can top up pouches on the way through.

What the Acidic Raion Pouch is used for

ItemRecipe / notes
Basic BatteryCopper ×2 + Acidic Raion Pouch ×1; powers your tools and gear — one of the most-crafted early items
Mild AcidRefined from the pouch at the Processor; Mild Acid in turn feeds base construction and several equipment mods

The Basic Battery is practically the lifeblood of Subnautica 2 — the Scanner, Sonic Resonator, Repair Tool, Habitat Builder and a long list of tools all run on them, and they're consumed and replaced constantly. That makes the Acidic Raion Pouch a resource you'll come back for again and again, so mark a reliable Acid Raion colony once you find one.

Harvesting tips

On your first few dives, stockpile a stack of pouches in the Coral Gardens so you always have battery materials on hand. Like Copper, it's a "keep-it-stocked" consumable — Copper is also everywhere in the shallow coral, and together they keep batteries rolling off the Fabricator. Once you start making Mild Acid (and later Strong Acid and other advanced materials), gather a few extra so you're never caught short at the crafting bench.

One thing worth knowing: the pouch comes from the Acid Raion specifically — don't confuse it with similar coral growths nearby. Each colony yields several pouches and they regrow, so a single marked patch can keep you in batteries for a long time. If you'd rather not ferry materials back and forth, build a small outpost with a Fabricator near a dense Acid Raion field and crank out Basic Batteries on the spot between dives.

FAQ

Q: Where do I harvest the Acidic Raion Pouch?
A: From Acid Raion colonies in the Coral Gardens — hand-harvest the bulbs, no tool needed.

Q: What is it used for?
A: Basic Batteries (Copper ×2 + pouch) and Mild Acid — the backbone of early power and chemistry.

Q: Is it the same as the Acid Raion?
A: The Acid Raion is the worm-like colony; the pouch is the resource you harvest from it.

Q: Do I need a tool to harvest it?
A: No — it's hand-harvested.

Q: How many should I stockpile?
A: Batteries are consumable, so keep a stack of pouches and Copper on hand to top them up.

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