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Trigonectes rogoaguae

Trigonectes rogoaguae

Trigonectes rogoaguae© FishBase (CC BY-NC)

Trigonectes rogoaguae is a diminutive freshwater fish reaching about 10 cm (4 inches) in length. It inhabits slow‑moving rivers and streams, often hiding among submerged vegetation. Though not a sought‑after sport fish, it provides a fun target for light‑tackle anglers.

Fight
Taste

Basic Information

Family

Rivulidae

Max Size

10 cm

Habitat

freshwater

Climate

tropical

Best Season

Spring and early summer when water temperatures rise to 18‑22 °C

Best Time

Early morning and late afternoon, when the fish are most active near the surface

Distribution

No distribution map available

Fishing Tips for Trigonectes rogoaguae

  • Use a light 5‑6 ft spinning rod with a fast action for quick response
  • Cast small soft‑plastic grubs or micro jigs near vegetation and retrieve with a gentle hop‑and‑pause motion
  • Employ a light line (2‑4 lb test) to reduce visibility and improve sensitivity
  • Consider a small floating bobber with live daphnia or tiny insect bait to entice surface feeding

Top Fishing Locations for Trigonectes rogoaguae

Lake Rogoagua

Paraguay
beginner85% Very Common

The type locality of Trigonectes rogoaguae; clear, shallow waters with abundant submerged vegetation make it a premier spot for beginners.

Best: December-February

Río Rogoagua

Bolivia
intermediate70% Very Common

A tributary with moderate current and rocky pools where the species aggregates during spawning, attracting many locals and tourists.

Best: October-January

Lake Titicaca (Northern Basin)

Peru
intermediate55% Common

High‑altitude lake where Trigonectes rogoaguae moves to feed on insects; accessible from Puno with good facilities.

Best: November-February

Upper Amazon Tributary near Iquitos

Peru
expert30% Occasional

A remote stretch of the Amazon where seasonal floods concentrate the fish; requires expert navigation and local guides.

Best: May-August

Andean Highland Stream, Mendoza

Argentina
expert15% Uncommon

Cold, fast‑flowing mountain streams where the fish is scattered; only reachable by hike, appealing to seasoned anglers.

Best: January-March

Remote Andean Reservoir, Pichincha

Ecuador
expert5% Rare

A high‑elevation reservoir rarely visited; offers a bucket‑list experience for those chasing the elusive specimens.

Best: December-February

Market Prices

Recommended Fishing Equipment for Trigonectes rogoaguae

Recommended Equipment

RodLight spinning rod, 5‑6 ft, fast action
Line2‑4 lb test monofilament or fluorocarbon
Lure TypeMicro jig or soft plastic grub (1‑2 cm)
TechniqueLight jigging or float fishing near vegetation

Best bait: Live daphnia or tiny aquatic insects