Galactic snakelike creature is a valuable catch in the Harvest Moon game. This lovable fish can be found in the creek during wet weather and at night. If you manage to hook a Cosmic heart fish, you can sell it for a handsome profit. In addition to its price, it is also in demand by fishing enthusiasts for its ornate beauty. So, grab your tackle box and head to the creek side to try your luck at catching this Stardew eel. Happy fishing!