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65 assessed pairingsPoecilia sphenops

Molly compatibility

Every pairing AquariumHQ has assessed for Molly, derived from stored behavioural and environmental traits. Each verdict links to the reasoning behind it — including where the evidence runs out.

The species record is on the Molly page. Any pairing not listed here can be assessed on demand with the compatibility checker.

What decides this species' pairings

Counted across every assessment above — the dimensions that actually raise concerns for this animal, rather than the ones a care sheet would list.

DimensionPairings raising itShare
ph5483%
temperature3351%
hardness2945%
zone competition2132%
breeding aggression1523%
territory711%

Environmental compromise

Whether a shared temperature, pH and hardness band exists is a necessary condition, not evidence that it suits both animals. This counts how good the overlap actually is.

Overlap qualityPairings
Forced compromise — neither animal is where it wants to be38
No overlap at all15
One animal at the edge of its range8
Workable2
Comfortable for both2

Every assessed pairing

Grouped by verdict, worst first.

Conditional (28)

Can work, but only if the stated conditions are met.

Generally compatible (2)

Usually works. Minor points to watch are listed below.

Compatible (3)

Requirements align and no behavioural conflict is expected.

Verdict distribution

VerdictPairingsWhat it means
Conditional28Can work, but only if the stated conditions are met.
Poor match21Workable only in unusual circumstances. Not a pairing to plan around.
Incompatible11Should not be attempted. At least one factor is expected to cause harm.
Compatible3Requirements align and no behavioural conflict is expected.
Generally compatible2Usually works. Minor points to watch are listed below.