Best for
Aquariums where its role fits: community fish.
G
Fish · Freshwater
Gardneri killifish
Fundulopanchax gardneri
Gardneri killifish is a very popular aquarium species suitable for well maintained home aquariums.
Difficulty
Intermediate
Aggression
4/10
Schooling
Medium
Size
6.00 cm
Minimum volume
40 L
Temperature
22.0-25.0 ºC
Zone
Surface
Lifespan
5 years
Quick profile scan
fish
Territoriality
Medium
Aggression
4/10
Activity
Moderate
Thermal sensitivity
Medium
Bioload
Low
Speed
Moderate
Predation risk
None
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Quick verdict
A practical summary to quickly decide whether it fits your aquarium.
Typical risk
Stability depends on temperature, group size, and real compatibility.
Aquarium zone
Where it lives best
Surface
primary
Midwater
Bottom
Quick compatibility
Community signals
Shrimp
Compatible
Snails
Compatible
Slow fish
Compatible
Aggressive fish
Conditional
Small fish
Compatible
Large fish
Compatible
Delicate plants
Conditional
Buying decision
Before buying Gardneri killifish
Review these points before adding it to your aquarium. They are practical notes based on its profile, ecological data, and known relationships.
L
Adult volume
Make sure your aquarium is above 40 L before buying it.
Parameters
Water conditions
pH
6.0 - 7.2
GH
2 - 10
KH
1 - 5
Temperature
22.0 - 25.0 ºC
Growth and behavior
Juvenile to adult
Juvenile
As a juvenile it is usually more flexible and less dominant than an adult. Even so, it benefits from cover, stable parameters and tank mates that do not compete intensely in the surface.
Shift
The transition to adulthood usually brings more stable behavior when group size, space and parameters are suitable.
Adult
As an adult it behaves as a community fish and needs space, tank mates and activity level to be well balanced. Its impact increases when bioload or competition is high.
Ecological profile
Role and biological pressure
Community Fish
Predator
Small
Low
Moderate
None
Profile: community fish, with low bioload and primary use of the surface. It can adapt to calm communities, although it usually behaves better with compatible companions. Compatibility mostly depends on stable parameters, adequate space and tank mates with a similar activity level.
Ecological radar
profile
Territoriality
52%
Aggression
40%
Activity
52%
Thermal sensitivity
52%
Bioload
24%
Common mistakes
What to avoid
Keeping it in tanks below the recommended adult volume.
Essential care
Keep it with carefully chosen tankmates and perform weekly water changes with stable parameters.
Daily time
10 min
Related biomes
Breeding
Breeding in aquariums is possible when good conditions are provided and a suitable setup is prepared.
Oviparous
Moderate
Machos mucho más coloridos y con aletas más desarrolladas
Alerts and health
- Acuario tapado
- Agua tranquila
- Comida variada
Common issues
Ich
Parásitos
Expert notes
Interesting details
01
Es una especie muy popular en acuariofilia
02
Se aprecia más cuando se mantiene correctamente
Editorial confidence
Last review: June 2026
Content based on parameters, ecological profiles and manual relationships.
Profile data
Ecological profile
Manual relationships
General aquarium observation
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