Doederlein Cardinalfish

The Doederlein Cardinalfish is one of the larger members of the cardinalfish family commonly seen in the aquarium trade, reaching up to 5.5 inches in length. Native to the Western Pacific, this species features a silvery body with subtle horizontal striping and can display pinkish-orange highlights under aquarium lighting. It is found on coral reefs and rocky slopes where it forms loose aggregations near overhangs and cave entrances, making it a prominent presence in its natural habitat.

Despite its larger size compared to many other cardinalfish, the Doederlein Cardinalfish remains a gentle and peaceful species that is easy to care for in captivity. It adapts well to aquarium life and readily accepts a variety of frozen and prepared foods. A minimum tank size of 30 gallons is recommended, with ample rockwork to provide shelter and create a sense of security. This species can be kept singly, in pairs, or in small groups, with groups displaying the most engaging natural behavior.

The Doederlein Cardinalfish is fully reef-safe and will not interfere with corals or invertebrates. Its larger size means it can hold its own in community tanks that include moderately active species, though it should still be protected from highly aggressive tankmates. This species makes an excellent centerpiece cardinalfish for aquarists who want something a bit more substantial than the typical small cardinalfish.