[Morass] Wake Up, Fish!
Start and complete it with Jean in Path to the Coral Forest 5.
Requirements
Lv. 230+
Quests
Objectives
Collect
NPCs
Locations
Jean Start, Complete
Connected quests
Dialogue
Turning in the quest
Additional replies
That is not enough 
Memory Sliver.
Collect 50 and feed them to the Flying Fish.