Can Flowerhorn Live With Penang Betta?

Flowerhorn and Penang Betta are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 78–80°F.

pH ✓ Compatible

Good pH overlap at 6.5–7.0.

Size ⚠ Use Caution

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

Temperament ✗ Not Compatible

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

Swim Level ⚠ Use Caution

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

Trait Conflict ✗ Not Compatible

Flowerhorn is a predator and may eat Penang Betta.

Tank Requirements

Minimum tank size for this combination: 63 gallons

ParameterFlowerhornPenang Betta
Temperature78–86°F72–80°F
pH6.5–7.55.5–7
Max Size12"3"
TemperamentAggressivePeaceful
Swim LevelMiddleMiddle
Min Tank55 gal15 gal

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