The Blue Spotted Puffer (Arothron caeruleopunctatus) is a small to medium-sized pufferfish found in the Indo-Pacific region, including the Red Sea and Hawaii. It typically grows up to 6 inches in length and is easily recognized by its bright blue spots over a light yellow or white body. Like other pufferfish, the Blue Spotted Puffer has the ability to inflate itself to several times its normal size as a defense mechanism against predators. However, they are also popular in the aquarium trade due to their unique appearance and entertaining behavior.