The Tailspot Cardinal (Apogon dovii) is a small reef fish found among the eastern Pacific Ocean, from California down the coast of South America. They have solid read bodies with horizontal white stripes across their eyes and a black spot at the base of their caudal fin. They reach a maximum size of 3 inches and should be housed in an aquarium of at least 40 gallons. They do well in small groups and though reef safe, should not be kept with small prized invertebrates, as this is their natural prey. They typically hide among caves and overhangs during the day, then hunt at night. Their red coloration helps prevent detection, and their large eyes help spot prey with minimal light. They should not be kept with larger predatory fish.