PisciDex Species Profile
Golden Wonder Killifish
Hardy surface predator that needs a tight lid and tankmates too large to swallow.
Aplocheilus lineatus
Aplocheilidae | South Asia | India and Sri Lanka
Core Requirements
Tank Size
20 gallons minimum
Adult Size
4 inches
Group Size
Solo
Bioload
2/10
Water Parameters
Temperature
72-82 F
pH
6.5-7.5
Plant Safe
Yes
Invert Safe
No
Data Confidence
medium
Temperature note: Recommended and tolerated temperature ranges currently match the primary care profile.
Care Warnings
- Surface predator that may eat small fish and fry.
Behavior & Husbandry
Temperament
Semi-Aggressive
Aggression
4/10
Diet
Carnivore
Difficulty
Intermediate
Lifespan
4 years
Breeding
Intermediate
Schooling
No
Compatibility Tags
Semi AggressiveSolitaryTop WaterPlant Safe
Similar Species
Species Compatibility
Database-driven compatibility notes for planning community aquariums.