Oman Anemonefish Care Guide
Amphiprion omanensis is an anemonefish known only from the Arabian Sea coast of Oman, reaching about 14 cm and hosting in two anemone species.
Compiled by Aquairi from published sources · Published · Updated
Overview
Amphiprion omanensis is a marine anemonefish of the family Pomacentridae with a very restricted range along the Arabian Sea coast of Oman. The body is dark brown with two narrow white bars, blackish pelvic and anal fins, and a forked caudal fin that is blackish in juveniles and fades toward white in adults. The species is rare in the aquarium trade.
Taxonomy
- Family: Pomacentridae
- Genus: Amphiprion
- Scientific name: Amphiprion omanensis
- Common name: Oman anemonefish
Habitat
The species is known only from the Arabian Sea coast of Oman, where populations near the northern and southern limits are separated by roughly 400 km. FishBase records it as a non-migratory, reef-associated fish inhabiting inshore reefs at depths of about 2-10 m. It hosts in two anemone species: Entacmaea quadricolor and Heteractis crispa. Larvae undergo a pelagic phase of under three weeks, with dispersal influenced by prevailing currents.
Tank requirements
- Minimum tank volume: 150 L
- Temperature: 24-26 °C (75-79 °F)
- pH: 8.1-8.4
- Carbonate hardness (dKH): 8-12
- Specific gravity: 1.024-1.026
- Maximum size: about 14 cm
- Lifespan: 12-14 years
Reef compatibility
Amphiprion omanensis is reef-safe and does not damage corals or invertebrates. A host anemone such as Entacmaea quadricolor or Heteractis crispa is appreciated but not essential for captive care.
Diet
The species is omnivorous, feeding on plankton and algae in the wild. In aquaria it accepts marine pellets, frozen mysis and enriched brine shrimp, offered about twice daily.
Compatibility
It is semi-aggressive and defends a territory around its host. Suitable companions include tangs, royal gramma, wrasses and cleaner shrimp, while other clownfish species and aggressive triggerfish should be avoided. Keep one bonded pair per anemone.
Breeding
The species is oviparous with distinct pairing during breeding. Demersal eggs adhere to the substrate and are guarded and aerated by the male. Newly hatched larvae have well-developed swimming and sensory abilities before their short pelagic phase.
Conservation status
IUCN Red List: Least Concern, assessed in 2010.
Oman Anemonefish Breeding Guide
Overview
Amphiprion omanensis is one of the rarest clownfish, found only along the coast of Oman, with sites about 250 miles apart at either end of its confined range. It reaches about 14 cm, has two thin white bars and a forked caudal fin, and associates with the bubble-tip anemone Entacmaea quadricolor and the sebae anemone Heteractis crispa. It is rare in the trade; specialist facilities have slated it for captive breeding, building on their prior success with the related wide-band anemonefish.
Sexing
Detailed sex-change data are not published for this species, but as an anemonefish it follows the genus pattern of size-based social hierarchy in which the largest fish is the female and the second-ranked fish is the breeding male. Raising juveniles together and allowing the hierarchy to settle is the standard route to a pair.
Conditioning
A bonded pair held in a stable, warm reef and fed frequently on a varied diet comes into breeding condition. A host anemone such as Entacmaea quadricolor or Heteractis crispa is readily accepted but is not strictly required for spawning in captivity.
Breeding Setup
Because the species is rare and not yet routinely bred, breeding follows the general anemonefish pattern. The breeding setup provides a flat, defensible spawning surface such as rock within the pair's territory near any host anemone present.
Spawning Behavior & Trigger
As an anemonefish it is a demersal substrate spawner: the pair deposits adhesive eggs on a flat surface near its territory and fertilizes them externally. Adults provide high levels of parental care to their young, and a settled pair under stable parameters and frequent feeding spawns in repeated cycles.
Egg & Fry Care
The male tends the nest, fanning and cleaning the eggs until they hatch. The young hatch with well-developed swimming and sensory capabilities and pass through a pelagic larval phase of less than three weeks. In captivity, larvae are reared on small live foods, starting with rotifers and moving to Artemia nauplii as they grow.
Common Challenges
The species' rarity and restricted range mean broodstock is hard to obtain, and quantitative egg and incubation data are not yet published. As with all clownfish, the planktonic larval phase is the bottleneck, demanding a continuous supply of correctly sized live food and stable, high-quality water.