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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Tropical

Featherfin tetra

Hemigrammus unilineatus Gill, 1858
Max Length
5.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Usually found in ponds, ditches, slow flowing streams, both clear and turbid, in both open and shaded areas. A voracious species which feeds on small crustaceans, insects and mollusks . Gregarious and non-aggressive, it is reputedly easy to rear and to reproduce in the aquarium . Maximum length questionable .

Scientific Name
Hemigrammus unilineatus
Authority
Gill, 1858
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
5.3 cm
Trophic Level
3.4
Resilience
High
Vulnerability
10.00/100
Water Temp
23–28 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Featherfin tetra is currently being compiled.

🌀 Behaviour

Behavioural data for Featherfin tetra is currently being reviewed.

🦐 Diet

Diet information for Featherfin tetra is currently being compiled.

🥚 Reproduction

Reproduction data for Featherfin tetra is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 6.0 - 7.5; dH range: ? - 20. Tropical; 23°C - 28°C Central and South America: River basins of Trinidad, coastal river basins of Venezuela, rivers of Guyana, Suriname, French Guiana; Amazon and Guaporé River basins.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.44
Food Items

small crustaceans, insects and mollusks (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01445 × L2.93 (TL)
Max TL
5.3cm

🌡️ Water Parameters & Tolerance

Temperature Range
23–28°C
pH Range
6–7.5
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Climate Zone
Tropical
Described By
Gill, 1858

🍽️ Edibility & Flavour

"Featherfin tetra is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

Nutrition

Detailed nutritional data for Featherfin tetra is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Featherfin tetra has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

🌐 Names & Taxonomy

Language Common Names
🇬🇧English featherfin tetra · Featherfin tetra, Flag tetra
🇩🇰Danish Halebåndstetra
🇩🇪German Schwanzstrichsalmler
🇫🇷French Tétra drapeau
🇵🇹Portuguese Piquira
🇷🇺Russian Однополосая тетра · Полосатая тетра

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 148 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Featherfin tetra ↗
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