How to Build the Second Smallest Tank in Subnautica
Ah, you mean the High Capacity O₂ Tank! First, craft a Standard O₂ Tank. Then, gather two Glass, four Titanium, and one Silver Ore. Combine all of these at a Fabricator, and you're ready to take deeper dives!
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For a High Capacity O₂ Tank, you'll need to craft a Standard O₂ Tank first. Then, collect two Glass, four Titanium, and one Silver Ore. Use the Fabricator to assemble it all!
Standard O₂ Tank + 2 Glass + 4 Titanium + 1 Silver Ore at the Fabricator = High Capacity O₂ Tank. Easy peasy!
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