Cosmic aquatic animal is a valuable catch in the Harvest Moon game. This creature can be found in the creek during wet 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 worth, it is also highly sought after by fishermen for its ornate beauty. So, grab your tackle box and head to the creek side to try your luck at capturing this Galactic love creature. Happy fishing!