Fin's Fish Guide
The Redhook metynnis (Myloplus rubripinnis) is a freshwater fish of the family Serrasalmidae that grows up to 42 cm.
Northern South America; quiet parts of rivers with overhanging vegetation.
Description
The redhook silver dollar is a characiform of the family Serrasalmidae from northern South America. The species has a deep, strongly laterally compressed, disc-shaped silvery body with a conspicuous red anal fin, to which the name refers. It lives in schools in calm parts of rivers where the bank vegetation overhangs the water. Unlike the related piranhas it is peaceful and largely herbivorous: it feeds on fruits, seeds, leaves and algae. The species is harmless to humans.
Frequently asked questions
How do you recognise the Redhook metynnis?
The Redhook metynnis has a flattened, disc-shaped body, is mainly silver-grey and shows a plain pattern. Disc-shaped body with a red anal fin; peaceful, plant-eating piranha relative.
Where does the Redhook metynnis live?
The Redhook metynnis lives in fresh water and is mostly found around mixed bottom. Northern South America; quiet parts of rivers with overhanging vegetation.
How big does the Redhook metynnis get?
The Redhook metynnis grows to a maximum of about 42 cm.
Is the Redhook metynnis dangerous to humans?
The Redhook metynnis can cause injury; handle it with care. None required: this species is harmless to humans.
Is the Redhook metynnis edible?
Yes, the Redhook metynnis is commonly eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Myloplus
More from the family Serrasalmidae
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Point your camera at the fish and Fin names the species in seconds. Free, and the Redhook metynnis is one of 12,519 species in the app.