Grav Trap (Subnautica)
The Gravsphere is a device which attracts small objects and fauna to itself. It is most useful when trying to catch many fast-moving fish, like the Peeper when it feels threatened.
Recipe
Usage
The Gravsphere takes up 2x2 item slots in the player's inventory. It attracts fish and any item dropped by the player. Items not harvested by the player, such as salt, quartz, and anything contained in harvesting nodes, will not be attracted to the Gravsphere. It is best to place it on the ocean floor. Do not place in open water, mainly because schools of fish will run off with the Gravsphere.
It is suggested to remove the objects caught by the Gravsphere before picking up the sphere. If you are in the open ocean, currents may send the objects 30 meters or more away if you pick up the Gravsphere with the objects still attached to the sphere.
However, using the Stasis Rifle is a way more effective way of hunting.