Can Jack Dempsey Live With Peacock Gudgeon?

Jack Dempsey and Peacock Gudgeon are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 72–79°F.

pH ✓ Compatible

Good pH overlap at 6.5–7.5.

Size ⚠ Use Caution

Significant size difference (10" vs 3"). Jack Dempsey may bully or stress Peacock Gudgeon.

Temperament ✗ Not Compatible

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

Swim Level ✓ Compatible

Fish occupy different water levels (Jack Dempsey: middle, Peacock Gudgeon: bottom), reducing conflict.

Trait Conflict ✗ Not Compatible

Jack Dempsey is a predator and may eat Peacock Gudgeon.

Important Notes

  • Peacock Gudgeon is a schooling fish and needs at least 4 of its kind.

Tank Requirements

Minimum tank size for this combination: 63 gallons

ParameterJack DempseyPeacock Gudgeon
Temperature72–86°F72–79°F
pH6.5–7.56.5–7.5
Max Size10"3"
TemperamentAggressivePeaceful
Swim LevelMiddleBottom
Min Tank55 gal15 gal

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