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Hypostomus derbyi

Hypostomus derbyi

Hypostomus derbyiAI-generated illustration

Hypostomus derbyi, commonly known as Derby's pleco, is a small South‑American freshwater catfish reaching up to 31 cm. It lives on rocky bottoms of rivers and feeds on algae and detritus, making it a modest target for anglers seeking a bottom‑dwelling species.

Fight
Taste

Basic Information

Family

Loricariidae

Max Size

31 cm

Habitat

freshwater

Climate

tropical

Best Season

Warm months (October–March in the Southern Hemisphere)

Best Time

Dusk to night (approximately 6‑10 PM)

Distribution

No distribution map available

Fishing Tips for Hypostomus derbyi

  • Locate sections of river with submerged rocks or logs where the fish hide
  • Use light tackle – a 5‑6 ft spinning rod with 4‑8 lb test line
  • Bait with live or frozen shrimp, worms, or small fish pieces and let it sit on the bottom
  • Fish during low‑light periods; night or early morning yields the best bites

Top Fishing Locations for Hypostomus derbyi

Paraná River – Near Rosario

Argentina
intermediate55% Common

Large stretches of the lower Paraná provide strong currents and abundant submerged wood where H. derbyi feed, making it a reliable target during summer floods.

Best: December-February

Itaipu Reservoir

Brazil
beginner45% Occasional

The massive reservoir created by the Itaipu dam harbors dense rocky habitats favored by the species; easy access from nearby towns.

Best: November-March

Pantanal – Rio Negro (Brazilian side)

Brazil
expert30% Occasional

Remote floodplain channels in the Pantanal hold large individuals, but navigating the wetlands requires a guide.

Best: December-January

Upper Paraguay River – Near Corumbá

Brazil
intermediate40% Occasional

Clear waters with abundant driftwood; seasonal floods increase feeding activity.

Best: October-February

Uruguay River – Near Concepción del Uruguay

Argentina
beginner50% Common

Shallow riffles and sandbars provide easy casting spots for targeting Derby's pleco.

Best: December-February

Mato Grosso – Rio Cuiabá

Brazil
expert20% Uncommon

Fast-flowing sections with rocky substrate; requires strong tackle and local knowledge.

Best: November-February

Market Prices

Recommended Fishing Equipment for Hypostomus derbyi

Recommended Equipment

RodLight to medium spinning rod, 5‑6 ft, fast action
Line4‑8 lb test monofilament or fluorocarbon
Lure TypeN/A
TechniqueBottom fishing with a slip‑sinkers rig and baited hook

Best bait: Live or frozen shrimp, worms, or small fish pieces