Silver Dollar

Metynnis spp.

Minimum Tank Size

75 gal

Temperature

75–82°F

PH

5.5–7.5

Adult Size

5–7 in

Temperament 

Peaceful, active schooling fish

Care Difficulty

Intermediate

Diet & Feeding

Primarily herbivorous/omnivorous; vegetables and plant-based prepared foods with varied supplements.

Care Instructions

Provide a large tank, a school, open swimming room and robust decor.

Flow & Filtration

Strong filtration with moderate current.

Planted Tank Suitability

Poor with many live plants; they commonly eat vegetation.

Tank Mate Compatibility

Good Tank Mates
  • Oscar
  • Severum
  • Large Pleco

Use Caution 
  • Large Catfish
  • Other Large Cichlids

Avoid
  • Tiny Tetras
  • Shrimp
  • Very Small Fish

Compatibility Notes

Often used as robust dither fish with large cichlids, but tank size and individual aggression matter.

Breeding Notes

Egg-scatterer; breeding requires a large dedicated setup.