Physical description for aquarium is currently being
compiled.
🌀 Behaviour
Behavioural data for aquarium is currently being
reviewed.
🦐 Diet
aquatic invertebrates
small fish
algae
detritus
🥚 Reproduction
🐣 Oviparous👄 Mouth Brooder🛡️ Egg Guarder
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External
Eggs are attached to the ceiling of caves, female cares for eggs and larvae .
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical; 23°C - 29°C South America: Essequibo River drainage, including the Potaro and Rupununi rivers, Corantijn and Cuyuni River basins.
Venezuela
🌿 Ecology
Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.4
📐 Morphometrics
Length–Weight Relationship:
W = 0.0182 × L2.99
(TL)
Max TL
4.1cm
🌡️ Water Parameters & Tolerance
Temperature Range
23–29°C
Salinity Range
0–0.5ppt
🛡️ Conservation Assessment
IUCN Category
Least Concern
Assessment Date
2020
📊 Population Risk & Fisheries
Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Tropical
Described By
Eigenmann, 1912
🍽️ Edibility & Flavour
"aquarium 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
BakingGrillingPan-frying
⚡ Nutrition
Detailed nutritional data for aquarium is
currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for aquarium 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
✓ Sustainable Choice
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g
- Source: USDA FoodData Central templates (generic fish average)
Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg
📊 Population Dynamics
Year
Region
Index
Notes
-
-
-
🌐 Names & Taxonomy
Scientific Synonyms
Scientific Name
Author
Year
Status
Heterogramma ortmanni
Eigenmann
1912
Synonym
🦠 Common Diseases
The following diseases are known to affect aquarium.