Razor Surgeonfish (Prionurus laticlavius)

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Razor Surgeonfish

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Prionurus laticlavius

1136 Litres (300 US G.)

53.3-58.4cm (21-23 ")


8.1 - 8.4

18.3-25.6°C (65 -78 °F)

8-12 °d

1:1 M:F

Pellet Foods
Flake Foods
Live Foods

15-20 years



Additional names

Razor Sawtail, Yellowtail Surgeonfish

Origin[edit | edit source]

From south-west Gulf of California to Ecuador, including the Galapagos Islands

Sexing[edit | edit source]

No sexual dimorphism; examine underside

Tank compatibility[edit | edit source]

Peaceful, although aggressive to similar species if space is limited. If threatened, they may attack you with the "saw" on their caudal peduncle, so be careful not to spook them.

Diet[edit | edit source]

An herbivore that eats both macroalgae and microalgae, but may also be supplemented with meaty foods.

Feeding regime[edit | edit source]

Daily, at least 2 times.

Environment specifics[edit | edit source]

A slightly cooler water species that enjoys plenty of rock for grazing.

Behaviour[edit | edit source]

Usually peaceful, but will fight with similar fish in limited space. It may be observed "slapping" other fish with its peduncle spine to settle territorial disputes.

Identification[edit | edit source]

Grey body with 3 spots on caudal peduncle; not as spotted as its relative, the Yellowtail Surgeonfish.