Oxygen Management
Master oxygen mechanics, calculate safe dive times, and avoid death.
8 min readIntermediateUpdated 2026-03-15
Quick Tip: Always leave 20-30 seconds of oxygen as an emergency reserve.
Table of Contents
Oxygen Basics
Oxygen is your real fail state in Abyss. If it runs out, you die and lose every unsold fish from that trip.
| Tube | Oxygen Capacity | Cost | Depth Access |
|---|---|---|---|
| Starter Tube | 60s | Free | 0-50m |
| Pufferfish Tube | 90s | $2,850 | 0-150m |
| Anglerfish Tube | 120s | $8,000 | 0-250m |
| Abyssal Tube | 180s | $25,000 | 0-500m |
Dive Planning
- Check your tube capacity before every route
- Estimate descent and ascent time first
- Reserve at least 30 percent for the return trip
- Only then budget fishing time at target depth
- Use the Oxygen Calculator when the route gets close
Warning: Do not plan around perfect execution. Small aim mistakes and navigation delays happen every run.
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Sources
Reviewed By
RobloxCalc Editorial, High-Value Route Review. This guide was checked against the current source set before publishing.