Fin's Fish Guide
The Diamond filefish (Rudarius excelsus) is a saltwater fish of the family Monacanthidae that grows up to 3 cm.
Asia: Australia, Cambodia, Indonesia, Japan, Ryukyu Is., Malaysia and others
Description
The Diamond filefish is a small filefish (Monacanthidae) from coastal waters of coastal waters of northern Australia. The species grows to about 4 cm and has a deep, laterally compressed body with a rough, file-like skin and an erectable first dorsal spine. As a slow swimmer it shelters among seagrass, weed and coral and snaps at small invertebrates, algae and zooplankton. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Diamond filefish?
The Diamond filefish has a flattened, disc-shaped body and is mainly brown.
Where does the Diamond filefish live?
The Diamond filefish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Asia: Australia, Cambodia, Indonesia, Japan, Ryukyu Is., Malaysia and others
How big does the Diamond filefish get?
The Diamond filefish grows to a maximum of about 3 cm.
Is the Diamond filefish dangerous to humans?
No, the Diamond filefish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Rudarius
More from the family Monacanthidae
Want the complete picture on the Diamond filefish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Diamond filefish is one of 12,519 species in the app.