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Thornback cowfish

Lactoria fornasini

Thornback cowfish© FishBase (CC BY-NC)

The Thornback cowfish (Lactoria fornasini) is a small, box-shaped reef fish prized for its distinctive angular armor and striking coloration. It is rarely targeted by anglers because of its modest size and low culinary value, and it is best caught using light, subtle tactics on coral reefs.

Fight
Taste
Inedible/Protected
Venomous

Basic Information

Family

Ostraciidae

Max Size

23 cm

Habitat

marine

Depth Range

5-132m

Climate

tropical

Best Season

All year in tropical regions; peak activity in summer months

Best Time

Early morning and late afternoon

Distribution

Select a map type to show distribution on the globe.

Fishing Tips for Thornback cowfish

  • Use light tackle to avoid spooking the fish and to handle its delicate mouth
  • Cast small live shrimp or crab near reef ledges and allow it to drift naturally
  • Employ a gentle jigging motion with a tiny soft‑plastic lure to mimic prey
  • Retrieve slowly and keep the line slack to let the cowfish take the bait without tearing its armor

Market Prices

Recommended Fishing Equipment for Thornback cowfish

Recommended Equipment

RodLight spinning rod, 6‑7 ft, fast action
Line4‑6 lb test monofilament or fluorocarbon
Lure TypeSmall soft‑plastic shrimp or tiny jig
TechniqueLight cast‑and‑retrieve or gentle jigging near reefs

Best bait: Live shrimp or small crabs