Stardew Valley Eel Guide All You Need To KnowStardew fish is a valuable catch in the Harvest Moon game. This heart creature can be found in the stream during wet days and at night. If you manage to catch a Cosmic heart fish, you can sell it for a handsome profit. In addition to its worth, it is also in demand by anglers for its ornate beauty. So, grab your angler gear and head to the streamside to try your luck at capturing this Galactic love creature. Happy fishing!