
Apogon lachneri
Family: Apogonidae ยท Cardinalfish
Also known as: White Star Cardinal, Lachner's Cardinalfish, Starry Cardinalfish
The Whitestar Cardinalfish is a beautiful Caribbean endemic species recognized by its distinctive white star-like markings against a warm reddish to coppery body. These pale spots and star patterns create an elegant, celestial appearance that sets it apart from other cardinalfish in the Western Atlantic. The body is compact and typical of the cardinalfish form, with large, expressive eyes that reflect its nocturnal lifestyle.
This species is found exclusively in the Caribbean basin, from the waters of southern Florida and the Bahamas through the Greater and Lesser Antilles. It inhabits reef crevices, under coral ledges, and within the dark recesses of reef structures where it shelters during the day. At night, it emerges to feed on the zooplankton and small crustaceans that become active in the water column after dark.
The Whitestar Cardinalfish is a peaceful and manageable aquarium species that brings a touch of Caribbean charm to the home reef tank. Its endemic range makes it a particularly interesting species for aquarists who appreciate biogeographic diversity. Like other Caribbean cardinalfish, it is hardy, adapts well to captive conditions, and accepts a variety of prepared foods with minimal fuss.
Whitestar Cardinalfish are carnivores that feed on zooplankton and small crustaceans during nocturnal foraging. In captivity, they readily accept frozen mysis shrimp, enriched brine shrimp, cyclops, and quality marine pellets. They adapt quickly to daytime feeding schedules. Feed two to three times daily.
The Whitestar Cardinalfish is peaceful and compatible with most reef community fish. It does well alongside clownfish, gobies, blennies, wrasses, and other cardinalfish. Being from the Caribbean, it pairs well with other Western Atlantic species for biotope-style tanks. Avoid housing with aggressive fish that may harass it.
Check CompatibilityWhitestar Cardinalfish are paternal mouthbrooders. Males carry fertilized eggs in their mouths for approximately 7-10 days until hatching. Pairs form readily in captivity. Fry require small live foods such as rotifers and newly hatched brine shrimp as first foods.