Fin's Fish Guide
The Moon silver dollar (Metynnis luna) is a freshwater fish of the family Serrasalmidae that grows up to 13 cm.
Description
The moon silver dollar is a characin (Serrasalmidae) from slow-flowing rivers and flooded forest of the Amazon basin in South America. The species grows to about 15 cm and has a deep, round, strongly laterally compressed, silvery shape like a coin. Unlike its piranha relatives it is mainly plant-eating: in schools it grazes water plants, fruit, seeds and algae. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Moon silver dollar?
The Moon silver dollar has a flattened, disc-shaped body and is mainly silver-grey.
Where does the Moon silver dollar live?
The Moon silver dollar lives in fresh water and is mostly found around open water. South America: Brazil, Peru
How big does the Moon silver dollar get?
The Moon silver dollar grows to a maximum of about 13 cm.
Is the Moon silver dollar dangerous to humans?
No, the Moon silver dollar is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Want the complete picture on the Moon silver dollar?
Point your camera at the fish and Fin names the species in seconds. Free, and the Moon silver dollar is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Metynnis
More from the family Serrasalmidae
Want the complete picture on the Moon silver dollar?
Point your camera at the fish and Fin names the species in seconds. Free, and the Moon silver dollar is one of 12,519 species in the app.