The Birthday Blowfish is a common type of fish that can be caught by fishing in the pond. It can be displayed using an aquarium. It sells for 6 coins and recycles for 40 recycle points. Like all fish, it cannot be gifted. Since the Birthday Blowfish is a common fish type, it can be caught using any type of food, whether purchased from the Food Store or using Homegrown food from the garden.