Diamond Tetra

Moenkhausia pittieri

Minimum Tank Size

20–30 gal

Temperature

75–82°F

PH

6.0–7.5

Adult Size

2–2.5 in

Temperament 

Peaceful to mildly nippy schooling fish

Care Difficulty

Beginner–Intermediate

Diet & Feeding

Use a high-quality species-appropriate staple and supplement with suitable frozen, live, or plant foods. Feed portions the fish can consume without leaving waste.

Care Instructions

Provide stable 75–82°F water, appropriate chemistry, regular partial water changes, and enough space for the fish at its full adult size.

Flow & Filtration

Use mature biological filtration, good oxygenation, and current appropriate to the species. Keep ammonia and nitrite at zero and control nitrate with regular maintenance.

Planted Tank Suitability

Can be kept with plants when the layout and plant choices suit the species; protect vegetation from digging or grazing where necessary.

Tank Mate Compatibility

Good Tank Mates
  • Corydoras
  • Rasboras
  • Other Medium Tetras

Use Caution 
  • Angelfish
  • Gourami

Avoid
  • Betta
  • Long-finned Guppy

Compatibility Notes

Larger groups reduce fin-focused behavior; provide open swimming room.

Breeding Notes

Breeding behavior and fry care are species-specific; use a dedicated breeding setup when needed.