Dwarf rainbowfish
📖 Overview
Dwarf rainbowfish (Melanotaenia praecox) is a ray-finned fish of the family Melanotaeniidae. It inhabits freshwater waters. This species can reach a maximum total length of 5 cm. With a trophic level of 2.9, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List. Commercially fished and consumed as food.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 10 - 14; Anal spines: 1; Anal soft rays: 16 - 21. Develops a very deep body, particularly in males, at a remarkably small size (3.0-3.5 cm SL).: fusiform / normal.
🌀 Behaviour
Behavioural data for Dwarf rainbowfish is currently being reviewed.
🦐 Diet
Diet information for Dwarf rainbowfish is currently being compiled.
🥚 Reproduction
Distinct pairing .
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical; 22°C - 28°C ; 2°S - 3°S
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Melanotaenia Praecox is an edible species."
- 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
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
⚡ Nutrition
Detailed nutritional data for Dwarf rainbowfish is currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for Dwarf rainbowfish has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🔍 Similar Species
👥 Community & Contribute
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