aquarium, bait
📖 Overview
aquarium, bait (Betta raja), first described by Tan & Ng, 2005 is a small fish in the family Osphronemidae (order Anabantiformes). Adults typically reach 6.40 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is important as a food fish, kept in the aquarium hobby, and considered a sustainable seafood option under current management. As a member of the Osphronemidae, it shares life-history and morphological traits with its relatives in the group.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 1 - 2; Dorsal soft rays (total): 7 - 10; Anal spines: 2; Anal soft rays: 23 - 26; Vertebrae: 28 - 30. Pelvic fin very long in mature males (15-23 anal fin rays at pelvic fin end, even exceeding anal-fin base in some specimens); anal fin and lower half of caudal fin with dark margins; anal fin rays 25-28 (mode 26); lateral scales 30-32 (mode 31); head length 33.9-37.4% SL; predorsal length 20.0-24.6% SL; preanal length 46.1-52.4% SL; and body length 62.8-70.7% SL .: fusiform / normal.
🌀 Behaviour
Behavioural data for aquarium, bait is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Betta Raja 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 aquarium, bait is currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for aquarium, bait has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)
📊 Population Dynamics
| Year | Region | Index | Notes |
|---|---|---|---|
| - | - | - |
🦠 Common Diseases
The following diseases are known to affect aquarium, bait.
🔍 Similar Species
👥 Community & Contribute
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