Can Electric Blue Johanni Live With Serpae Tetra?

Electric Blue Johanni and Serpae Tetra are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 75–82°F.

pH ⚠ Use Caution

Very narrow pH overlap (7.5–7.5). Hard to maintain precisely.

Size ✓ Compatible

Compatible sizes (4" and 1.75").

Temperament ✗ Not Compatible

Electric Blue Johanni (aggressive) is not compatible with Serpae Tetra (semi-aggressive). Aggression or stress is very likely.

Swim Level ⚠ Use Caution

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

Important Notes

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

Tank Requirements

Minimum tank size for this combination: 65 gallons

ParameterElectric Blue JohanniSerpae Tetra
Temperature75–82°F72–82°F
pH7.5–8.55.5–7.5
Max Size4"1.75"
TemperamentAggressiveSemi-aggressive
Swim LevelMiddleMiddle
Min Tank55 gal20 gal

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