Cosmic heart snakelike creature is a valuable catch in the Stardew Valley game. This heart creature can be found in the creek during stormy weather and at night. If you manage to reel in a Cosmic heart fish, you can sell it for a good price. In addition to its worth, it is also highly sought after by anglers for its captivating charm. So, grab your fishing rod and head to the creek side to try your luck at catching this Cosmic heart fish. Happy fishing!