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Characidium serrano

Characidium serrano

Characidium serrano is a tiny freshwater characin reaching only about 5.4 cm. It inhabits clear, fast‑moving streams in South‑American river basins and is prized by hobbyists rather than anglers. Its small size and shy nature make it a challenge for traditional angling but an interesting target for micro‑fly or light tackle fishing.

Fight
Taste
Inedible/Protected

Basic Information

Family

Crenuchidae

Max Size

5.4 cm

Habitat

freshwater

Climate

temperate

Best Season

Spring and early summer (April‑July) when water temperatures rise

Best Time

Early morning and late afternoon/dusk

Distribution

No distribution map available

Fishing Tips for Characidium serrano

  • Use a very light line and small hooks (size 10‑12) to avoid spooking the fish.
  • Fish in shallow riffles and near submerged vegetation where they feed on insects.
  • Present a dead‑drift or very slow retrieve to mimic natural prey.
  • Check local regulations; many small characins are protected in certain regions.

Top Fishing Locations for Characidium serrano

Rio Tocantins

Brazil
intermediate60% Common

Clear headwater sections of the Tocantins River host healthy populations of Characidium serrano, especially in riffle habitats with rocky substrate.

Best: May-September

Parque Nacional da Serra do Cipó

Brazil
beginner70% Very Common

Mountain streams within the Serra do Cipó National Park provide ideal microhabitats; anglers often find the species near waterfalls and shaded pools.

Best: October-December

Upper Orinoco Basin

Venezuela
expert30% Occasional

Remote tributaries of the Orinoco host scattered Characidium serrano populations; access requires a guide and a light tackle setup.

Best: June-August

Upper Uruguay River (Rio Grande do Sul)

Brazil
intermediate45% Occasional

The fast‑flowing sections of the Uruguay River near its source are known for abundant Characidium serrano, especially over gravel bars.

Best: November-February

Paraná River near Rosario

Argentina
intermediate55% Common

Large riverine habitats with submerged vegetation make the Paraná a reliable spot for targeting this darter species.

Best: December-February

Rio Negro tributary (Colombia)

Colombia
expert35% Occasional

Shallow, blackwater tributaries of the Rio Negro hold hidden Characidium serrano pockets; best fished during low water when visibility improves.

Best: July-September

Market Prices

Recommended Fishing Equipment for Characidium serrano

Recommended Equipment

RodUltralight spinning or fly rod, 6‑8 ft, delicate action
Line2‑4 lb test monofilament or 1‑2 lb test fluorocarbon
Lure TypeMicro nymphs, tiny soft‑plastic grubs, or size 0‑1 dry flies
TechniqueSurface or subsurface micro‑fly casting, gentle drift, or light jigging

Best bait: Live micro‑insects or larvae (e.g., chironomids), or small piece of worm