Cosmic eel is a valuable catch in the Harvest Moon game. This eel can be found in the creek during wet days and at night. If you manage to hook a Stardew eel, you can sell it for a good price. In addition to its worth, it is also coveted by fishermen for its ornate beauty. So, grab your angler gear and head to the creek side to try your luck at catching this Galactic love creature. Happy fishing!