Can Blue Platy Live With Jack Dempsey?

Blue Platy and Jack Dempsey are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 72–80°F.

pH ✓ Compatible

Good pH overlap at 7.0–7.5.

Size ⚠ Use Caution

Significant size difference (10" vs 2.5"). Jack Dempsey may bully or stress Blue Platy.

Temperament ✗ Not Compatible

Blue Platy (peaceful) is not compatible with Jack Dempsey (aggressive). Aggression or stress is very likely.

Swim Level ⚠ Use Caution

Both fish occupy the middle level and Jack Dempsey is territorial. Provide plenty of space and hiding spots.

Trait Conflict ✗ Not Compatible

Jack Dempsey is a predator and may eat Blue Platy.

Tank Requirements

Minimum tank size for this combination: 55 gallons

ParameterBlue PlatyJack Dempsey
Temperature70–80°F72–86°F
pH7–86.5–7.5
Max Size2.5"10"
TemperamentPeacefulAggressive
Swim LevelMiddleMiddle
Min Tank10 gal55 gal

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