Spotted silver dollar
Metynnis lippincottianus
Also known as Speckled silver dollar, Lippincott's silver dollar, Speckled metynnis
FreshwaterFish
Care at a glance
- Temperature
- 73–81°F
- 23–27°C
- pH
- 5.5–7.5
- Adult size
- 5.5 in
- 14 cm
- Minimum tank
- 53 gal
- 200 L
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Easy
- Breeding
- Hard
- Rarity
- Common
- Family
- Serrasalmidae
- Origin
- Native to the Amazon basin and rivers of the Guianas in northern South America.
Overview
Silver dollars are nervous unless kept in a shoal of at least 5, and a larger group settles them noticeably. They are peaceful and get along with most medium sized community fish, but they will strip live plants down to the stems, so plan on plastic or very tough plants. Give them a tall, roomy tank with open swimming space and a secure lid.
In the wild
Lives in slow stretches of Amazonian rivers and floodplain lakes, often among submerged branches and marginal plants. The fish forage through flooded vegetation for leaves, fruit, and soft plant matter. They move in shoals through the middle water.
Good to know
Metynnis lippincottianus is a disc shaped, silver bodied relative of the piranhas, but it is almost entirely vegetarian. It is scattered with small dark spots and shows a faint bar behind the gill cover. Adults reach around 14 cm.
Did you know
Despite being cousins of the piranha, these disc shaped fish are dedicated plant eaters that can demolish an aquascape in a night.
Weekly picks
Tank mates
Spotted silver dollar is a peaceful, schooling species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Parrot doradid
Rhynchodoras woodsi
Freshwater4.1 in (10.5 cm) · 53 gal (200 L)73–82°F (23–28°C)
Pike topminnow
Belonesox belizanus
Freshwater7.9 in (20 cm) · 44 gal (165 L)73–82°F (23–28°C)
Cupid cichlid
Biotodoma cupido
Freshwater4.7 in (12 cm) · 53 gal (200 L)68–86°F (20–30°C)
Ocellated squeaker
Synodontis ocellifer
Freshwater7.9 in (20 cm) · 53 gal (200 L)73–81°F (23–27°C)
Blue spotted hill trout
Barilius bakeri
Freshwater5.1 in (13 cm) · 53 gal (200 L)64–79°F (18–26°C)
Jeweled baril
Opsarius pulchellus
Freshwater5.1 in (13 cm) · 53 gal (200 L)72–81°F (22–27°C)
Common questions
What size tank does a Spotted silver dollar need?
A Spotted silver dollar needs at least 53 gal (200 L). It spends most of its time in the middle.
What temperature and pH does a Spotted silver dollar need?
A Spotted silver dollar is comfortable at 73–81°F (23–27°C) with a pH of 5.5–7.5.
How big does a Spotted silver dollar get?
An adult Spotted silver dollar reaches about 5.5 in (14 cm).
Does a Spotted silver dollar need a group?
Yes. A Spotted silver dollar is a schooling species and should be kept in a group, not singly.
Related species
7.1 in (18 cm)92 gal (350 L)73–82°F (23–28°C)Spotted metynnis
Metynnis maculatus
7.1 in (18 cm) · 92 gal (350 L)
3.9 in (10 cm)70 gal (265 L)75–82°F (24–28°C)Banded silver dollar
Metynnis fasciatus
3.9 in (10 cm) · 70 gal (265 L)
5.9 in (15 cm)53 gal (200 L)75–82°F (24–28°C)Wimple piranha
Catoprion mento
5.9 in (15 cm) · 53 gal (200 L)
5.1 in (13 cm)46 gal (175 L)72–82°F (22–28°C)Tiger pacu
Acnodon normani
5.1 in (13 cm) · 46 gal (175 L)
9.8 in (25 cm)70 gal (265 L)73–81°F (23–27°C)Redhook
Myloplus rubripinnis
9.8 in (25 cm) · 70 gal (265 L)
15.7 in (40 cm)170 gal (645 L)73–81°F (23–27°C)Disk tetra
Myloplus schomburgkii
15.7 in (40 cm) · 170 gal (645 L)
