Cosmic heart fish is a valuable catch in the Harvest Moon game. This heart fish can be found in the creek during stormy weather and at night. If you manage to catch a Galactic love creature, you can sell it for a good price. In addition to its price, it is also in demand by anglers for its exquisite appearance. So, grab your tackle box and head to the creek side to try your luck at hooking this Cosmic heart fish. Happy fishing!