The Spotted Silver Dollar (Metynnis lippincottianus) is a large, peaceful freshwater fish recognised for its round, silver body patterned with dark spots. Active and social by nature, Silver Dollars are best kept in groups where they display confident schooling behaviour and constant movement.

Their calm temperament makes them suitable for large community aquariums with similarly sized tank mates. Due to their size and appetite, Spotted Silver Dollars require spacious tanks and robust filtration to thrive.

Physical Characteristics

Adult Size: Approximately 15–18 cm (6–7 inches)
Coloration: Bright silver body with dark spotted markings
Body Shape: Disc-shaped, laterally compressed
Sexual Dimorphism:
- Females are typically rounder when mature
- Males may develop slight fin extensions

Behaviour & Temperament

Temperament: Peaceful
Tank Level: Mid to upper water levels
Schooling Behaviour: Should be kept in groups of 5 or more
Activity Level: Active swimmer

Suitable Tank Mates

Other Silver Dollars
Large peaceful tetras
Peaceful cichlids
Catfish and plecos

Avoid:

Small fish (may be eaten)
Aggressive or territorial species
Delicate plants

Breeding Information

Spawning Type: Egg scatterer
Breeding Setup:
- Soft to neutral water
- Open swimming space
Parental Care: None
Notes: Breeding is uncommon in home aquariums

Special Considerations

Known plant eaters — live plants may be damaged
Requires strong filtration due to size and feeding habits
Easily startled without adequate schooling numbers
Needs ample swimming space

Aquarium Requirements

Minimum Tank Size: 300 litres
Water Temperature: 24–28°C
pH Range: 6.0–7.5
Water Hardness: 5–15 dGH
Substrate: Sand or smooth gravel

Decor: Driftwood, Rocks, shaded areas
Filtration: Strong, well-maintained
Lighting: Low to moderate

Diet & Feeding

Diet Type: Omnivore with strong herbivorous tendency
Recommended Foods:
- High-quality flakes or micro pellets
- Frozen foods such as daphnia and brine shrimp
- Occasional vegetables (spinach, zucchini)
Feeding Frequency: Once or twice daily in small portions

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