Can Penang Betta Live With Red Devil?

Penang Betta and Red Devil are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 75–80°F.

pH ✓ Compatible

Good pH overlap at 6.5–7.0.

Size ⚠ Use Caution

Significant size difference (12" vs 3"). Red Devil may bully or stress Penang Betta.

Temperament ✗ Not Compatible

Penang Betta (peaceful) is not compatible with Red Devil (aggressive). Aggression or stress is very likely.

Swim Level ⚠ Use Caution

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

Trait Conflict ✗ Not Compatible

Red Devil is a predator and may eat Penang Betta.

Tank Requirements

Minimum tank size for this combination: 55 gallons

ParameterPenang BettaRed Devil
Temperature72–80°F75–82°F
pH5.5–76.5–7.5
Max Size3"12"
TemperamentPeacefulAggressive
Swim LevelMiddleMiddle
Min Tank15 gal55 gal

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