Large Pearl Mussel

This shellfish, lying motionless at the bottom of the lake, cannot excrete the indigestible foreign matter in its body, so it can only wrap it up into pearls.

Large Pearl Mussel is a level 6 fish in Heartopia, found in Forest Lake. It appears at any time of day in rainbow weather. Look for a medium shadow. It sells for 380–3,040 gold depending on quality.