What to know
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Bullet Head Fish are located near the alien power plant in the alien biome.
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Start at the Angel Comb, then head north to north-northeast along the route.
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Look to the right while moving because the fish can be spotted along the wall.
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Once you reach them, get close and scan the Bullet Head Fish to identify it.
Bullet Head Fish in Subnautica 2 are found in the alien biome near the power plant, along the route heading north to north-northeast from the Angel Comb. The fish appear attached to the wall, so the key is to follow that path and scan them once you reach the area.
Bullet Head Fish details
Bullet Head Fish location
The route begins near the alien power plant, inside the alien biome where alien technology is concentrated. From there, the path runs north, leaning toward north-northeast. As you move along that route, keep your view angled to the right because the fish are visible off the main line of travel.
The area has multiple sightings, so it is worth checking the route carefully. The fish are not free-swimming targets here; they are shown attached to the wall, which makes the location easier to recognize once you know what to look for.
Route from the Angel Comb
The Angel Comb is the main landmark used to start the search. From that point, follow the route toward the alien power plant and continue along the path heading north, then slightly northeast. The key is to watch the right side during the approach, since that is where the fish first become visible.
Step 1
Reach the Angel Comb in the alien biome. It serves as the starting reference point for the route.

Step 2
Move away from the Angel Comb and follow the path heading north, then north-northeast.

Step 3
Keep looking to the right as you travel.

The Bullet Head Fish can be spotted along the wall beside the route.

Step 4
When you reach the fish, move in close and scan it. That is the way to register the Bullet Head Fish.

What the Bullet Head Fish looks like
The Bullet Head Fish is attached to the wall rather than floating in open water. That makes its shape and position important for recognition.

The strongest visual indicator is the cluster of fish appearing along the wall on the right side of the route.