Can Diamond Tetra Live With Wine Red Betta?

Diamond Tetra and Wine Red Betta are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 75–82°F.

pH ✗ Not Compatible

No pH overlap. Diamond Tetra needs pH 6–7.5, but Wine Red Betta needs pH 3.5–5.5.

Size ✓ Compatible

Compatible sizes (2.5" and 1.8").

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

Fish occupy different water levels (Diamond Tetra: middle, Wine Red Betta: top), reducing conflict.

Important Notes

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

Tank Requirements

Minimum tank size for this combination: 23 gallons

ParameterDiamond TetraWine Red Betta
Temperature72–82°F75–82°F
pH6–7.53.5–5.5
Max Size2.5"1.8"
TemperamentPeacefulPeaceful
Swim LevelMiddleTop
Min Tank20 gal5 gal

Check More Combinations

Use our compatibility checker to add more fish and plan your complete tank.