Galactic heart aquatic animal is a valuable catch in the Stardew Valley game. This creature can be found in the stream during stormy weather and at night. If you manage to catch a Cosmic heart fish, you can sell it for a handsome profit. In addition to its price, it is also highly sought after by fishing enthusiasts for its ornate beauty. So, grab your fishing rod and head to the streamside to try your luck at capturing this Cosmic heart fish. Happy fishing!