PisciDex Species Profile
Popular freshwater fish known for vibrant colors and territorial behavior.
Betta splendens
Osphronemidae | Southeast Asia | Thailand, Cambodia, Laos, and Vietnam
Core Requirements
Tank Size
5 gallons minimum
Adult Size
3 inches
Group Size
Solo
Bioload
2/10
Water Parameters
Temperature
76-82 F
pH
6.5-7.5
Plant Safe
Yes
Invert Safe
No
Data Confidence
high
Temperature note: Recommended and tolerated temperature ranges currently match the primary care profile.
Care Warnings
- Do not keep male bettas together. Bettas are solitary and may attack other bettas or long-finned tankmates.
Behavior & Husbandry
Temperament
Semi-Aggressive
Aggression
6/10
Diet
Carnivore
Difficulty
Easy
Lifespan
3 years
Breeding
Intermediate
Schooling
No
Compatibility Tags
Nano TankSemi AggressiveSolitaryTerritorialTop WaterPlant SafeBeginner Friendly
Similar Species
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Species Compatibility
Database-driven compatibility notes for planning community aquariums.