Can Jack Dempsey Live With Long-Finned Serpae Tetra?

Jack Dempsey and Long-Finned Serpae Tetra are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 72–82°F.

pH ✓ Compatible

Good pH overlap at 6.5–7.5.

Size ✗ Not Compatible

Extreme size difference. Jack Dempsey (10") may eat or bully Long-Finned Serpae Tetra (1.8").

Temperament ✗ Not Compatible

Jack Dempsey (aggressive) is not compatible with Long-Finned Serpae Tetra (semi-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 Long-Finned Serpae Tetra.

Important Notes

  • Long-Finned Serpae Tetra is a schooling fish and needs at least 6 of its kind.

Tank Requirements

Minimum tank size for this combination: 65 gallons

ParameterJack DempseyLong-Finned Serpae Tetra
Temperature72–86°F72–82°F
pH6.5–7.56–7.5
Max Size10"1.8"
TemperamentAggressiveSemi-aggressive
Swim LevelMiddleMiddle
Min Tank55 gal20 gal

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