Best for
Aquariums where its role fits: centerpiece.
P
Fish · Freshwater
Paradise fish
Macropodus opercularis
Paradise fish is a very popular aquarium species suitable for well maintained home aquariums.
Difficulty
Beginner
Aggression
8/10
Schooling
Low
Size
12.00 cm
Minimum volume
120 L
Temperature
24.0-28.0 ºC
Zone
Surface
Lifespan
5 years
Quick profile scan
fish
Territoriality
High
Aggression
8/10
Activity
Moderate
Thermal sensitivity
Medium
Bioload
Medium
Speed
Moderate
Predation risk
None
Expert calculator
Check whether this species fits your aquarium
Analyze volume, parameters, behavior and relationships with other species.
Expert read
Quick verdict
A practical summary to quickly decide whether it fits your aquarium.
Avoid
Mixes marked as high risk or not recommended in manual relationships.
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
Conditional
Aggressive fish
High risk
Small fish
Compatible
Large fish
Compatible
Delicate plants
Conditional
Buying decision
Before buying Paradise fish
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 120 L before buying it.
T
Territory and cover
Prepare visual cover and calm areas if it will live with other species.
Parameters
Water conditions
pH
6.0 - 7.8
GH
5 - 15
KH
3 - 8
Temperature
24.0 - 28.0 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
Territorial behavior may become more evident with sexual maturity or during breeding periods.
Adult
As an adult it may defend specific areas and increase pressure on tank mates that stay too close. The aquarium layout should include visually separated territories.
Ecological profile
Role and biological pressure
Centerpiece
Centerpiece
Medium
Medium
Moderate
None
Profile: centerpiece species, with medium bioload and primary use of the surface. It does not rely on a strong school, but it still needs a balanced community without harassment. Provide hiding places, visual barriers and enough room to prevent constant pressure.
Ecological radar
profile
Territoriality
78%
Aggression
80%
Activity
52%
Thermal sensitivity
52%
Bioload
52%
Common mistakes
What to avoid
Keeping it in tanks below the recommended adult volume.
Designing the aquarium without shelter or visual barriers.
Relations
Avoid keeping with
!
Siamese Fighting Fish
High risk
Main risk: Territorial behavior
High risk
Betta splendens + Macropodus opercularis: territoriality, dominance or competition for calm areas of the aquarium may occur.
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 con aletas más largas y puntiagudas
Alerts and health
- Espacio
- Plantas
- Compañeros tranquilos pero robustos
Common issues
Ich
Problemas bacterianos
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
Explore atlas
You may also like
Related species to keep comparing habitat, size, and behavior.
