Imbellis Green Male Betta (Betta imbellis)
Imbellis Green Male Betta (Betta imbellis)
Species: Betta imbellis
Growth Form: Small labyrinth fish with short fins (wild-type betta)
Coloration: Iridescent green/blue body with red highlights on fins
Temperament: Peaceful to mildly territorial; less aggressive than typical bettas
Tank Size: 10 gallons minimum (15–20+ gallons for pairs/groups)
Placement: Top to mid-water swimmer
Lighting: Low to moderate
Flow: Low (gentle flow preferred)
Diet: Carnivore (pellets, frozen/live foods like bloodworms, brine shrimp)
Feeding: 1–2 times daily; small portions
Reef Safe: N/A (freshwater species)
Care Level: Moderate
Imbellis Green Male Betta (Betta imbellis)
Scientific Name: Betta imbellis
Common Names: Peaceful Betta, Crescent Betta, Green Imbellis Betta
Family: Osphronemidae
Origin: Southeast Asia (Thailand, Malaysia, Indonesia)
Overview
The Imbellis Green Male Betta is a wild-type betta species known for its iridescent green and blue coloration, often highlighted with subtle red accents on the fins. Unlike the more aggressive domesticated Betta splendens, Betta imbellisis significantly more peaceful and can sometimes be kept in pairs or carefully managed community setups. Their natural look and calmer temperament make them highly desirable among aquarists seeking a more authentic and behaviorally interesting betta species.
Size
- Adult Size: 2–2.5 inches
- Growth Rate: Moderate
Lifespan
- Typically 3–5 years with proper care
Temperament
- Peaceful to mildly territorial
- Much less aggressive than Betta splendens
- Males may display to one another but are less prone to constant fighting
- Can be kept in pairs or species groups with proper space and setup
Tank Requirements
- Minimum Tank Size: 10 gallons (single or pair)
- Recommended: 15–20+ gallons for groups
- Substrate: Sand or fine gravel
- Aquascape: Heavily planted with leaf litter, driftwood, and hiding spaces
- Lid: Required (excellent jumpers)
- Filtration: Gentle flow preferred
Water Parameters
- Temperature: 24–28°C (75–82°F)
- pH: 5.5–7.5 (slightly acidic preferred)
- Hardness: Soft to moderately soft
- Appreciates tannin-rich “blackwater” conditions
Diet
- Carnivorous
- Eats:
- High-quality betta pellets
- Frozen/live foods (bloodworms, daphnia, brine shrimp)
- Requires protein-rich diet for optimal health
Feeding
- Feed 1–2 times daily
- Small portions; avoid overfeeding
- Live or frozen foods enhance coloration and natural behavior
Tank Mates
Compatible:
- Small peaceful fish (rasboras, small tetras)
- Corydoras catfish
- Peaceful shrimp (with caution)
Avoid:
- Aggressive or fin-nipping species
- Other betta males in confined spaces
- Large or highly active fish
Breeding
- Bubble nest builder
- Male constructs nest and guards eggs
- Pair should be conditioned before breeding
- Fry require infusoria and later baby brine shrimp
Care Level
- Moderate
- Suitable for hobbyists familiar with stable water conditions and natural-style setups
Special Notes
- More tolerant of tank mates compared to common bettas, but still requires monitoring
- Colors intensify under proper lighting and natural conditions
- Benefits from tannins (Indian almond leaves, driftwood)
- Less prone to extreme fin damage due to shorter, natural finnage

