Mussel

The Mussel is a fish that can be caught using a Crab Pot in any saltwater body of water. It can also be foraged from the Beach, mined from a Mussel Node on the Ginger Island beach, gifted by a pet turtle with maximum friendship, or found randomly at the Traveling Cart. Like all fish caught from a Crab Pot, it cannot be eaten unless it is used in a cooking recipe or smoked.

Mussels have a few useful secondary uses beyond selling or holding onto for quests. 75 Mussels can be traded for a Mango Sapling at the Island Trader, making them a convenient currency item if you have a steady supply from Crab Pots or Ginger Island. They can also be used in the sewing machine spool to create the dyeable Sailor Shirt.

Mussels are also valid Fish Pond residents. When placed in a pond, they reproduce daily, starting with a capacity of 3 and eventually expanding to 10 through three capacity quests. Their pond output is centered on dark gray Mussel Roe, with Seaweed and several trash items also appearing often. At higher populations, additional valuable items become possible, including Coral, Sea Urchin, Warp Totem: Beach, and Nautilus Shell.

• Pond capacity quests require:
  • 5 Clay to increase capacity from 3 to 5
  • 10 Bug Meat or 5 Quartz to increase capacity from 5 to 7
  • 1 Sea Urchin, 5 Solar Essence, or 1 Wild Bait to increase capacity from 7 to 10
• A single Mussel may be requested by several ocean fish during Fish Pond quests to raise the pond from 7 to 10 capacity.
• Five Mussels may be requested by the Raccoon during the first request, and again in later requests starting with the sixth.

Mussels are also used in the museum collection indirectly through the game’s broader donation system, but they are not one of the items donated to the Museum. The Museum includes 95 donation items total, with rewards given at various donation milestones, and completing the full collection is tied to the A Complete Collection achievement. Donating 40 different items also awards Treasure Trove.

A practical note for players organizing museum donations: the museum has 102 display spaces, but only 95 items can be donated, leaving several spaces unused. Some tiles in the center of the largest table cannot be examined, and controller users may find diagonal items hard to inspect after donation. On mobile, items on the bottom row can be difficult to move, though rearrangement is available from the front desk to the left of Gunther.