Understanding Crashfish
A cave-dwelling creature that rushes out and explodes when disturbed.
This is an original reference for the first Subnautica. Your current depth rating, oxygen, available tools and navigation route determine when an objective is practical. Follow actual in-game PDA and Fabricator information for any values that vary by version.
How to use this information
Listen for warning sounds, retreat along the route you entered and revisit the cave after it detonates.
What to avoid
Entering narrow caves with no clear exit is more dangerous than the single explosion.