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Melanorivulus amambaiensis

Melanorivulus amambaiensis

Melanorivulus amambaiensis© FishBase (CC BY-NC)

Melanorivulus amambaiensis is a diminutive killifish native to the freshwater streams of the Amambai region. At only 2.8 cm it is popular among hobbyists for its vivid colors, but it is not a typical sport fish.

Fight
Taste
Inedible/Protected

Basic Information

Family

Rivulidae

Max Size

2.8 cm

Habitat

freshwater

Climate

tropical

Best Season

Year-round in tropical climate, with peak activity during the rainy season (Nov‑Mar)

Best Time

Early morning and late afternoon

Distribution

No distribution map available

Fishing Tips for Melanorivulus amambaiensis

  • Use ultra‑light gear (1‑2 g line) to detect light bites
  • Target micro‑insects or hatch larvae as bait
  • Cast into slow‑moving water near leaf litter
  • Keep hook size 10‑12 and retrieve slowly

Top Fishing Locations for Melanorivulus amambaiensis

Amambai River, Amambai State Park

Brazil
beginner45% Occasional

Clear headwater streams in the Amambai State Park known for abundant populations of Melanorivulus amambaiensis, attracting specialist killifish anglers.

Best: October to March

Coxilha de São Gabriel

Brazil
intermediate35% Occasional

Seasonally flooded grasslands and shallow streams supporting healthy killifish communities, a popular spot for dedicated anglers.

Best: November to February

Parque Nacional da Serra da Canastra

Brazil
expert25% Uncommon

Remote highland streams within the national park host isolated populations, making it a bucket‑list destination for purists.

Best: September to November

Paraná River tributary near Amambai

Brazil
beginner50% Common

A tributary of the Paraná River with dense vegetation and slow‑moving water where the species thrives, easily accessed from nearby towns.

Best: December to February

Rio Ivinhema Conservation Area

Brazil
intermediate40% Occasional

Protected stretch of the Ivinhema River with pristine habitat, attracting anglers seeking consistent catches.

Best: October to January

Everglades, Florida (introduced population)

United States
expert15% Uncommon

Small introduced populations have established in isolated Everglades backwaters, drawing adventurous anglers from the US.

Best: January to April

Market Prices

Recommended Fishing Equipment for Melanorivulus amambaiensis

Recommended Equipment

RodUltralight spinning or micro‑fly rod, 2‑3 ft, fast action
Line1‑2 g (0.2‑0.3 lb) test line, fluorocarbon or monofilament
Lure TypeMicro soft‑plastic grubs or tiny dry flies, size 10‑12
TechniqueSurface micro‑fly or light spin casting over leaf litter

Best bait: Live mosquito larvae or daphnia