Common name: Striped Splitfin

Scientific name: Luzonichthys taeniatus Randall & McCosker, 1992
Striped Splitfin (Luzonichthys taeniatus) photographed at Osezaki (-40m)Striped Splitfin (Luzonichthys taeniatus) photographed at Osezaki (-45m)

General Information

The Striped Splitfin, scientifically known as Luzonichthys taeniatus, is a stunning and relatively rare addition to the marine aquarium trade. This species is admired for its vibrant pink and yellow coloration, with a distinct horizontal stripe running along its body. Native to the Indo-Pacific region, including areas such as the Philippines and Indonesia, this fish is often found in deeper reef environments, where it forms large schools.

While not as commonly seen in home aquariums as other anthias species, the Striped Splitfin is highly sought after by advanced aquarists due to its striking appearance and schooling behavior. Its peaceful nature and compatibility with other reef-safe species make it an excellent choice for well-maintained reef tanks.

Details

Estimated price
Moderate Rarely seen in the trade
Recommended minimum tank volume
300 liter (79 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 26 °C (75 to 79 °F)
Acidity
pH 8 to 8.5
Average size
10 cm (4″)
Care level
Moderate to difficult
Diet
Planktivore Feeds on zooplankton; requires frequent small meals
Social
Harem Keep in groups with one male and several females
Reefsafe
Yes
Aggression
Peaceful Shy but peaceful, ideal for community reef tanks
Captive bred
No
Conservation statusSource: IUCN Red List
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Groupers
    Serranidae
  6. Genus
    Splitfin Anthias
    Luzonichthys
  7. Species
    Striped Splitfin
    Luzonichthys taeniatus Randall & McCosker, 1992
  8. Source: GBIF | Global Biodiversity Information Facility

Care

The Striped Splitfin requires a well-established aquarium with stable water parameters. They thrive in tanks with plenty of live rock for hiding and open swimming space to mimic their natural schooling behavior. A tank volume of at least 300 liters is recommended for a small group, as these fish are best kept in schools of 5 or more to reduce stress and encourage natural behavior.

These anthias prefer moderate to strong water flow and benefit from a well-oxygenated environment. Providing a mix of caves and overhangs will help them feel secure, while open areas allow them to display their active swimming patterns.

Diet and Feeding

In the wild, Striped Splitfins are planktivores, feeding on zooplankton and other small organisms. In captivity, they require a varied diet of high-quality frozen foods such as mysis shrimp, brine shrimp, and finely chopped seafood. Supplementing with enriched foods and marine-specific pellets ensures they receive the necessary nutrients.

Feed them small portions multiple times a day to replicate their natural feeding habits. This frequent feeding schedule is crucial for their health and vitality, as they have high metabolic rates.

Behavior and Compatibility

Striped Splitfins are peaceful and thrive in a social environment. They are best kept in schools, with one dominant male and several females. This natural harem structure minimizes aggression and promotes their vibrant coloration. Avoid housing them with overly aggressive tank mates, as they can be shy and may become stressed in such environments.

They are reef-safe and coexist well with a variety of corals and invertebrates. Their active swimming and schooling behavior add a dynamic element to reef tanks, making them a favorite among aquarists.

Reproduction

Like many anthias, Luzonichthys taeniatus are protogynous hermaphrodites, meaning all individuals are born female, with the dominant individual transitioning to male. Breeding in captivity is rare and challenging, as it requires precise environmental conditions and a large, stable group. Spawning typically occurs at dusk, with the male performing courtship displays to attract females.

Health and Common Issues

Striped Splitfins are sensitive to water quality and require pristine conditions to thrive. Regular water changes and careful monitoring of parameters such as temperature, salinity, and pH are essential. They are susceptible to common marine diseases like ich and bacterial infections, so quarantining new additions and maintaining a stress-free environment are critical.

When selecting a Striped Splitfin, look for active individuals with vibrant coloration and clear eyes. Avoid fish that appear lethargic or have visible signs of disease.

Habitat

In the wild, Luzonichthys taeniatus inhabits deep reef slopes and drop-offs, often at depths of 20 to 50 meters. These environments are characterized by strong currents and abundant plankton, which form the basis of their diet. Replicating these conditions in captivity, including moderate to strong water flow and a diet rich in planktonic foods, will help ensure their health and longevity.