Fathead Sunburst Anthias saltwater fish care guide

Serranocirrhitus latus stands apart from the slender, open-water anthias most aquarists picture. The body is deep and stocky with an oversized, blunt head, long flowing pectoral fins, and coloration that runs from pink to pinkish-orange, accented by yellow-to-orange scale margins and diagonal facial bands. Some individuals also show blue edging along the pectoral and anal fins. Adults reach roughly 5 inches. The species ranges widely through the Western Pacific, from the Moluccas east toward Fiji and Tonga, north to Taiwan and the Izu Islands, and south to New Caledonia and the Great Barrier Reef, where it keeps close to caves, ledges, and steep drop-offs rather than hovering in the water column.

Plan an adult home of at least 70 gallons built around extensive rockwork with caves, cracks, overhangs, and shaded retreats. This is a deep-reef fish accustomed to dim conditions, so low-to-moderate lighting and abundant cover help it settle in; paradoxically, the more hiding places it has, the more confidently it tends to show itself. Moderate water movement is useful because it carries suspended food toward the fish's chosen refuge, and ample surface agitation keeps oxygen levels where they should be. Fit the aquarium with a tight-fitting lid, since startled anthias are capable jumpers. It also behaves naturally in such a layout, occasionally swimming inverted beneath ledges and cave ceilings.

On the reef this anthias is a zooplankton feeder, picking small drifting prey from the water near its shelter. In the aquarium, offer small meaty items including mysis, enriched brine shrimp or Artemia, copepods, and Cyclops, along with finely chopped shrimp, clam, squid, and fish flesh. Suitable frozen carnivore preparations round out the rotation, and a refugium producing copepods and amphipods provides a steady trickle of live supplemental food.

Feed at least twice daily, and favor several small meals while a new fish is establishing itself. Dispensing food into the current so it drifts past the rockwork encourages a reluctant specimen to eat without leaving cover. Freshly imported individuals often ignore frozen items at first, so start with live or fortified adult brine shrimp, Artemia, or Cyclops, then transition to mysis and other frozen or fresh marine foods and, eventually, high-quality flakes once feeding is reliable.

Mysis Shrimp Enriched Brine Shrimp Copepods Cyclops Chopped Shrimp Chopped Clam Chopped Squid Frozen Carnivore Preparations
Shy, peaceful, and strongly tied to cover, this anthias is typically seen alone, in pairs, or in small loose aggregations rather than in the large open schools formed by its relatives. It can be maintained as a single specimen with no loss of behavior, and a pair or trio may be attempted in a larger aquarium provided all individuals are added simultaneously and only one male is retained. Like other anthias, it is a hermaphrodite capable of changing from female to male, so a dominant individual in a group will assume the male role.

Choose passive, noncompetitive tankmates: gobies, cardinalfishes, dartfishes, dragonets, assessors, comets, and small reef basslets all suit its temperament. Aggressive fishes and boisterous, faster-feeding anthias can intimidate it or keep it from reaching food, and that risk is highest during the acclimation period. It is reef safe, ignoring corals, clams, shrimp, crabs, and snails, and the live rock structure that houses those invertebrates supplies exactly the caves and crevices this fish needs to feel secure.

FAQ

Frequently Asked Questions

About the Fathead Sunburst Anthias

  • What aquarium size should I prepare for a Fathead Sunburst Anthias?
    Plan on a minimum of 70 gallons for an adult, with generous rockwork forming caves and ledges. Larger volumes are preferable, particularly if you intend to keep a pair or small group.
  • What should I feed it if it refuses frozen food after arrival?
    Start with live or fortified adult brine shrimp, Artemia, or Cyclops, then gradually work in mysis and other finely sized frozen or fresh marine foods. Feed at least twice daily, and preferably several small meals while it is acclimating.
  • Can it be kept alone, and which tankmates are appropriate?
    Yes, it does well as a single specimen, while a simultaneously introduced pair or small group can work in a larger aquarium if only one male is present. Pair it with calm, noncompetitive fishes and avoid aggressive species that may intimidate it or outcompete it at feeding time.