Flame Cardinalfish Care Guide
Apogon maculatus · Saltwater Cardinalfish

What Flame Cardinalfish look like
The Flame Cardinalfish, Apogon maculatus, exhibits a distinctive morphology characterized by its elongated, laterally compressed body, reaching a maximum adult size of approximately 3 inches (7.5 cm). This species displays sexual dimorphism, with males typically possessing slightly larger and more pronounced dorsal fins compared to females. The body is adorned with vibrant red-orange coloration, complemented by a series of small, dark spots along the flanks, which serve as a form of disruptive coloration, aiding in camouflage among the reef environment. Notable morphological features include a prominent lateral line system that aids in detecting water movements and potential predators, as well as a set of well-developed, sharp teeth adapted for grasping small prey. The dorsal fin is divided into two parts, with the first section containing spiny rays, providing an additional defensive adaptation against predators.
Behavior & temperament
Flame Cardinalfish are generally social creatures, often found in small groups or pairs within their natural habitat, which fosters a loose social hierarchy. They typically inhabit the mid-water column and are known for their peaceful temperament, although they can exhibit territorial behavior when breeding. During the breeding season, males engage in courtship displays, which include swimming in a zigzag pattern and fanning their fins to attract females. They are mouthbrooders, with males incubating the fertilized eggs in their mouths until they hatch, demonstrating a unique reproductive strategy. Their behavior is characterized by cautious movements, often retreating into crevices or coral structures when threatened.
Diet & feeding
In the wild, Flame Cardinalfish primarily feed on zooplankton and small crustaceans, utilizing their specialized dentition to capture prey. In captivity, they thrive on a diet of high-quality frozen or live foods such as brine shrimp, mysis shrimp, and finely chopped marine meats.
Behind the name
The genus name 'Apogon' is derived from the Greek word 'apogon,' meaning 'without a throat,' referring to the absence of a true throat in these fish. The species name 'maculatus' comes from the Latin word 'macula,' meaning 'spot,' highlighting the characteristic spotted appearance of this species.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Flame Cardinalfish?
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