Prionurus laticlavius
| Identification | Grey body with two dark bars across the head and a bright yellow tail |
| Maximum Length | ~10–14 in (25–35 cm) |
| Origin | Eastern Pacific — Galapagos & Mexico |
| Minimum Tank Size | 180 gallons |
| Reef Compatibility | Reef safe |
Behavior
A Prionurus sawtail (or razor) surgeonfish from cooler subtropical waters, named for the row of bony keels along the tail base in place of a single folding spine. It is an active, robust, reef-safe grazer that appreciates strong flow and open swimming room, and it tolerates — even prefers — slightly cooler temperatures than tropical tangs.
Diet & Feeding
Primarily herbivorous, grazing algae in the wild. Offer dried marine algae (nori) daily plus spirulina and herbivore preparations, supplemented with mysis and enriched brine.
Cautions
The tail keels can cut — handle with care. It grows large, is a strong swimmer that needs a big tank, and does best in cooler, well-oxygenated water; like other surgeonfish it is prone to ich and HLLE without good conditions.
Frequently Asked Questions
Where does the Galapagos Sawtail Tang come from?
From the cooler Eastern Pacific around the Galapagos and the coast of Mexico, so it prefers slightly cooler, well-oxygenated water.
Is the Galapagos Sawtail Tang reef safe?
Yes — it is an algae-grazing surgeonfish and reef safe, with bony tail keels rather than a single spine.