Cave Sulfur

Crashfish Powder is a sulfur-based Raw Material that can be found in Crashfish Plants after the residing Crashfish has left. It has the chemical formula SO[^4]Tr.

It can be used for crafting the Welder and Flares.

Crash Powder collecting
The best way to collect the Crashfish Powder is to lure the Crashfish out of the plant, evade its explosion (using the SeaGlide), and return to its nest for the powder.

Likewise, luring out the Crashfish and triggering it to dash towards the player will cause it to gain momentum. Swimming towards it will cause the Crashfish to overshoot and explode, dealing no damage to the player.

An alternative is to use the upgraded Repulsion Cannon to push them against a wall or far away from the player, triggering their explosion which will deal no damage to the player due to the distance.

Additionally, one can use a Stasis Rifle to immobilize it. However, the Crashfish will still explode even when being frozen by the stasis field, so it is recommended to stay out of the blast radius. Destroying the Crashfish Plant will prevent the Crashfish respawning, along with its powder.