Common name: Pinnate batfish

Scientific name: Platax pinnatus (Linnaeus, 1758)
Pinnate Batfish - Platax pinnatus (juvenile). Underwater world of Tulamben, Bali, Indonesia.Fledermausfische (Platax pinnatus)
Orbicular batfish (Platax orbicularis) sea fishPinnate Batfish - Platax pinnatus

General information

The Pinnate Batfish, Platax pinnatus, is a striking and unique species known for its deep black body, vibrant orange outline, and elongated dorsal and anal fins. Juveniles exhibit a more pronounced round shape and brighter coloration, which makes them highly sought after in the aquarium trade. As they mature, their body shape becomes more angular and their coloration more subdued.

Details

Recommended minimum tank volume
550 liter (150 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
45 cm (1′6″)
Care level
Moderate to easy Sensitive to water quality.
Diet
Omnivore Varied diet incl. algae, meaty foods.
Social
Solo Territorial, best kept alone.
Reefsafe
No May nip at corals and clams.
Aggression
Semi aggresive Can be aggressive to tank mates.
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Spadefish
    Ephippidae
  6. Genus
    Batfish
    Platax
  7. Species
    Pinnate batfish
    Platax pinnatus (Linnaeus, 1758)
  8. Synonyms
    Chaetodon pinnatus Linnaeus, 1758

Care

Pinnate Batfish require a large aquarium with plenty of open swimming space and stable water conditions. They are not recommended for beginners due to their sensitivity to water quality and their large adult size. A varied diet of meaty foods, such as shrimp, squid, and marine fish flesh, is essential for their health.

Reproduction

In the wild, Pinnate Batfish form large schools and spawn in open water. The eggs are pelagic, drifting with the currents until hatching. Breeding them in captivity is challenging and rarely successful due to the difficulty in mimicking their natural spawning conditions.

Habitat

Native to the Indo-Pacific region, Pinnate Batfish are found in a variety of marine environments, from mangrove estuaries to reef slopes. Juveniles often inhabit shallower areas with protective cover, while adults can be found at depths up to several tens of meters.

Geographical distribution includes areas from the Red Sea and East Africa to the Indo-Australian Archipelago, north to southern Japan, and south to New Caledonia.