Genshin Impact's Loach Pearls are mystical medicinal materials players can find in the marshes.
Teyvat has a variety of items for players to find and collect as they explore the various regions. One of these is the Loach Pearl, found by tracking down Loaches in the marshy and watery shores. While miHoYo hasn't exactly been forthcoming about the use of these items, they are by no means easy to find.
Here's where to get Loach Pearls.
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Genshin Impact Loach Pearl Locations
Travelers can find Loach Pearls out in the wild by seeking out and finding Teyvat's Loaches. The most common place these creatures reside are the Bishui Plains, specifically in the Dihua Marsh. They should be easy to spot due to their unique form and coloring.
Teyvat Loaches have pale pink bodies with vibrant coral fronds on either side of their heads and matching tail fin. To catch a Loach, simply run up to them and press the item button when prompted. The Loach will disappear, and travelers will be rewarded with a Loach Pearl. What this means for the Loaches we cannot say—but they may have gone the way of butterflies and moths in The Elder Scrolls: Skyrim. Poor things!
The game describes Loach Pearls as "a shiny spat out by a loach that has mystical medicinal properties." However, no other information is available about this item.
Travelers may be interested to know that while the creature is called a Loach in Teyvat, it actually resembles a real-world axolotl.