Pinnate Batfish

Platax pinnatus

Identification	Juveniles are jet black with a brilliant orange outline around the entire body; adults become tall, disc-shaped silver fish. Also called the Red-Fin or Dusky Batfish.
Maximum Length	18 inches
Origin	Indo-Pacific — Western Pacific reefs
Minimum Tank Size	180 gallons
Reef Compatibility	No — will nip corals and invertebrates; needs a very large tank

Behavior

The Pinnate Batfish is prized for its stunning black-and-orange juvenile coloration, which fades to a tall silver disc as it matures. It is an active, curious open-water swimmer that grows large and needs a very spacious aquarium with tall dimensions to accommodate its deep body. Batfish are intelligent and can become quite tame, learning to recognize their keeper. The Pinnate is the most delicate of the batfish and is best suited to experienced aquarists who can meet its demanding feeding and space requirements.

Diet & Feeding

Omnivore. In the wild grazes invertebrates and algae. The Pinnate is notoriously difficult to start feeding in captivity — it often needs live foods (live brine, blackworms, or small shrimp) initially, then a gradual transition to meaty frozen foods, mysis, and eventually prepared foods and nori. Feed several times daily.

Cautions

Grows very large and needs a tall, spacious tank — not suitable for small systems. The Pinnate Batfish is delicate and frequently refuses food at first; only advanced keepers should attempt it, and buy only specimens observed eating. Not reef safe — will nip corals and invertebrates. Susceptible to ich and lateral line disease; needs pristine water and a varied diet.