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Longnose Filefish
Longnose Filefish
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  • Longnose Filefish
  • Longnose Filefish
Product Code: RNC-01378 Available To Order
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Longnose Filefish

Oxymonacanthus longirostris
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Longnose Filefish also known as the Orange Spot Filefish, Orange Spotted Filefish or Harlequin Filefish are found from East Africa south to Maputo, Mozambique and east to Samoa, north to Ryukyu Islands, south to the southern Great Barrier Reef, New Caledonia, and Tonga.

Livestock arrives in and out of stock very regularly, depending upon availability of the item from the source. The more rare and expensive items are often difficult to hold in stock, and can take time to source, so we generally require a deposit to locate and purchase the extremely rare items
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The Longnose Filefish is a small filefish. Their small size combined with their beautiful pattern of orangish spots on a greenish-blue body would make you think this is an ideal fish for most tanks.

This fish is unfortunately only for experienced aquarists. The main reason is that in nature they mainly feed on Acropora polyps. Besides the fact that they are very hard (but but not impossible) to convert to other food, the question remains whether they do need Acropora polyps to stay healthy on the long run. This is why we advise to only add these fish to a tank with a lot of fast growing Acropora.

They are generally reef safe, however it is possible that they may nip some coral polyps.

Their diet should include a variety of shaved shrimp, squid, scallop, mysis shrimp, freeze-dried krill soaked in a vitamin supplement, and frozen marine algae. It should be fed no fewer than three times per day.

Minimum Aquarium Size

100 L

Max Size

12 cm

Reef Safe

With caution










Wild Caught



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