Below, you can find the full FFXIV: Endwalker item info for the Cosmic Sponge item. This item is a Seafood and is usually a crafting material or the product of a craft. Sometimes it can be dropped from a monster or found in a chest.
Medicine Food Fish Ingredient Minions Mounts Triple Triad
 |
Cosmic Sponge |
|||
|
Seafood Level: 1 |
Item Level: 430
NPC:  0 |
|||
|
This still very much alive and wriggling sponge can be scrubbed against a dragon’s fangs for a proper cleaning, but probably shouldn’t be for the sake of both parties involved. ※Only for use in Omicron society quests. ※Not included in the fish guide. |
||||