Sebae Clownfish

The Sebae Clownfish is an anemonefish native to the northern Indian Ocean, found from the Arabian Sea and Persian Gulf east through India and Sri Lanka to Indonesia. It belongs to the damselfish family Pomacentridae and takes its common name from its principal host anemone, the sebae anemone (Heteractis crispa). The species is dark brown overall with a contrasting yellow tail, distinguishing it from many other clownfish. It is a moderately large anemonefish, with females typically growing larger than males, and remains common throughout its range despite regular collection for the aquarium trade.

Identifying features of the Sebae Clownfish:

• Dark brown to blackish body color, occasionally with a slight olive tone
• Two broad white vertical bars: one behind the eye and one at mid-body
• A distinctly bright yellow to orange-yellow tail fin, contrasting sharply with the dark body
• Yellowish pectoral fins
• Larger size than most clownfish, with females reaching up to 16 cm The bright yellow tail combined with exactly two white bars helps separate it from the similarly dark Saddleback Clownfish, which shows a curved saddle mark rather than straight bars.

Sebae Clownfish are found on coral reefs and rocky substrates throughout the northern Indian Ocean, including the Arabian Sea, Persian Gulf, Red Sea margins, and coastal waters of India, Sri Lanka, and Indonesia. They typically occupy shallow reef slopes and lagoon environments at depths of 2 to 20 meters. Their principal host is the sebae anemone, Heteractis crispa, though they will also use other large anemone species when available. They inhabit warm tropical waters generally ranging from 24 to 29°C, favoring areas with moderate current that keep host anemones healthy.

Sebae Clownfish live in small social groups centered on a host anemone, structured around a dominant breeding female and a subordinate breeding male, with juveniles occupying the lowest ranks. All individuals begin life as males, with the largest fish in a group transitioning to female. They vigorously defend their anemone territory against intruding fish, relying on a protective mucus coating to remain unharmed by the anemone's venomous tentacles. Their diet includes zooplankton, algae, and small invertebrates. Breeding pairs lay demersal eggs on a cleared surface near the anemone's base, which the male tends and aerates until the eggs hatch after about a week.