Compatibility

Common Molly × Freshwater Angelfish Compatibility

Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.

Common Molly
Species A
Common Molly
Poecilia sphenops
View speciesView Poecilia genus
Freshwater Angelfish
Species B
Freshwater Angelfish
Pterophyllum scalare
View speciesView Pterophyllum genus

Common Molly and Freshwater Angelfish can live together in a well-planted community tank, but territorial behaviour should be monitored and water-parameter overlap should be checked carefully.

TemperatureB
pHC
HardnessB
FlowA
PredationA
BehaviourB
Compatible with cautionB

Envrionmental Factors

Temperature overlap
Common Molly: 18.0–28.0 °C
Freshwater Angelfish: 24.0–30.0 °C
Shared window: 24.0–28.0°C.
pH overlap
Common Molly: 7.5–8.5
Freshwater Angelfish: 6.8–7.8
Shared window: 7.5–7.8.
Hardness overlap
Common Molly: Medium → Hard
Freshwater Angelfish: Soft → Medium
Shared hardness bands: 1 (overlap ratio 50%).
Flow match
Common Molly: Medium
Freshwater Angelfish: Medium
Flow preferences do not conflict directly (no low-vs-high clash).

Behavioural Factors

Predation risk (size ratio)
Adult size ratio: 1.20x
Adult size gap is under 2.0x, which is usually a safer ratio.
Behaviour risk
  • - Freshwater Angelfish: Territorial.
  • - Freshwater Angelfish: Predatory.
  • - At least one species can be pushy or fin-nippy; monitor closely.
  • - Behaviour may vary by tank size and stocking; have a backup plan.
Parameter snapshot
ParameterCommon MollyFreshwater Angelfish
Adult size10.0 cm12.0 cm
Temperature18.0–28.0 °C24.0–30.0 °C
pH7.5–8.56.8–7.8
HardnessMedium → HardSoft → Medium
FlowMediumMedium
LocationsMexico, South AmericaSouth America
Geographic overlap (supporting signal)

Shared: South America

Best tank mates for Common Molly

Reference links to curated compatibility pair pages for this species.

Cherry barb
Cherry barb
Rohanella titteya
Guppy
Guppy
Poecilia reticulata
Platy
Platy
Xiphophorus maculatus
Swordtail
Swordtail
Xiphophorus hellerii

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