Care and Compatibility of Silver Dollar Fish - Metynnis argenteus


Introduction

The Silver Dollar Fish has an oval and laterally compressed body, with a bright silver coloration that gives them their name. They can grow to a size of approximately 10-15 centimeters. They have a long dorsal fin and a forked tail fin that allow them to swim agilely and swiftly.

Behavior

The Silver Dollar Fish, also known as Metynnis argenteus, is a species of freshwater fish found in South America. They are schooling fish that typically live in large groups in rivers and lakes. They are peaceful and sociable, making them a popular addition to community aquariums.

Sexual Dimorphism

Sexual dimorphism in Metynnis argenteus is minimal and difficult to distinguish. Both males and females have a similar appearance.

Reproduction

Breeding Silver Dollar Fish in captivity can be challenging. They are egg scatterers that require proper water conditions and stimuli to induce breeding. During courtship, males exhibit display behaviors and may become more aggressive towards other males. The eggs are deposited on plants or other substrates and are cared for by both parents until they hatch.

Aquarium Conditions

Metynnis argenteus, commonly known as the silver dollar fish, requires a spacious aquarium with plenty of room to swim. It prefers neutral to slightly acidic water and a warm temperature. Aquarium décor should include hardy plants and open swimming areas. Maintaining water quality is crucial and providing a balanced diet.

Feeding

They are omnivorous fish and accept a variety of foods in their diet. They primarily feed on algae, small aquatic invertebrates, and plant matter. They can also consume commercial foods in the form of pellets or flakes. It is recommended to provide them with a balanced diet that includes vegetable matter and protein to maintain their optimal health and coloration.

Complexity

Caring for Metynnis argenteus can be moderately challenging. They are peaceful and active fish that need a group of at least six individuals to feel secure. They are omnivores and accept a variety of foods, but they need enough space to swim and exercise. They require powerful filtration and regular water changes.


In case you need more help, or if you want to know into any topic related to the Metynnis argenteus (Silver Dollar Fish) and even any other species you can use the forums to ask what you need.

To do an analysis more detailed about coexistence and behavior of Metynnis argenteus (Silver Dollar Fish) use the Aquarium simulation tool, if you do this you can test different ways to combine the Silver Dollar Fish with other fishes giving the dimensions and space on you aquarium, on this way you can known the optimal configuration for keep the fishes that you want.

You can also find out the 108 species compatible with the Metynnis argenteus (Silver Dollar Fish) can live together.

Note: The parameters of the water such as PH and temperature are also used to calculate the compatibility of the species.


Compatible species (108)

Compatible (47 Species)

Compatible without any restriction


Gray bichir - Polypterus senegalus

Gray bichir

Polypterus senegalus

Clown Loach - Chromobotia macracanthus

Clown Loach

Chromobotia macracanthus

Galaxy Plecostomus - Leporacanthicus sp L240

Galaxy Plecostomus

Leporacanthicus sp L240

Striped Raphael Catfish - Platydoras costatus

Striped Raphael Catfish

Platydoras costatus

Upside-Down Catfish - Synodontis eupterus

Upside-Down Catfish

Synodontis eupterus

Golden Royal Pleco - Sturisoma aureum

Golden Royal Pleco

Sturisoma aureum

Severum Cichlid - Heros efasciatus

Severum Cichlid

Heros efasciatus

Freshwater angelfish - Pterophyllum scalare

Freshwater angelfish

Pterophyllum scalare

Coolie loach - Pangio kuhlii

Coolie loach

Pangio kuhlii

Leopard Cactus Pleco - Hypancistrus Furunculus L199

Leopard Cactus Pleco

Hypancistrus Furunculus L199

Swordtail fish - Xiphophorus hellerii

Swordtail fish

Xiphophorus hellerii

Pearl gourami - Trichogaster leerii

Pearl gourami

Trichogaster leerii

Molly fish - Poecilia sphenops

Molly fish

Poecilia sphenops

Butterfly Loach - Beaufortia leveretti

Butterfly Loach

Beaufortia leveretti

Yoyo Loach - Botia almorhae

Yoyo Loach

Botia almorhae

Kribensis Cichlid - Pelvicachromis pulcher

Kribensis Cichlid

Pelvicachromis pulcher

Tiger Barb - Puntius tetrazona

Tiger Barb

Puntius tetrazona

German Blue Ram - Microgeophagus ramirezi

German Blue Ram

Microgeophagus ramirezi

Bleeding Heart Tetra - Hyphessobrycon erythrostigma

Bleeding Heart Tetra

Hyphessobrycon erythrostigma

Dwarf marbled catfish - Microglanis poecilus

Dwarf marbled catfish

Microglanis poecilus

Hatchet Fish - Thoracocharax stellatus

Hatchet Fish

Thoracocharax stellatus

Glassy Perchlet - Parambassis ranga

Glassy Perchlet

Parambassis ranga

Platy Fish - Xiphophorus maculatus

Platy Fish

Xiphophorus maculatus

Red-eyed Tetra - Moenkhausia sanctaefilomenae

Red-eyed Tetra

Moenkhausia sanctaefilomenae

Female Siamese Fighting Fish - Betta Splendens Female

Female Siamese Fighting Fish

Betta Splendens Female

Male siamese fighting fish - betta splendens male

Male siamese fighting fish

betta splendens male

Dwarf Gourami - Colisa lalia

Dwarf Gourami

Colisa lalia

Zebrafish - Danio rerio

Zebrafish

Danio rerio

Black Skirt Tetra - Gymnocorymbus ternetzi

Black Skirt Tetra

Gymnocorymbus ternetzi

Kissing Gourami - Helostoma temminckii

Kissing Gourami

Helostoma temminckii

Harlequin Rasbora - Trigonostigma Heteromorpha

Harlequin Rasbora

Trigonostigma Heteromorpha

Apple Snail - Pomacea bridgesii

Apple Snail

Pomacea bridgesii

Emperor Tetra - Nematobrycon Palmeri

Emperor Tetra

Nematobrycon Palmeri

Goldeneye Dwarf Cichlid - Nannacara anomala

Goldeneye Dwarf Cichlid

Nannacara anomala

Boeseman's Rainbowfish - Melanotaenia Boesemani

Boeseman's Rainbowfish

Melanotaenia Boesemani

Denison Barb - Puntius denisonii

Denison Barb

Puntius denisonii

Upside-Down Catfish - Synodontis nigriventris

Upside-Down Catfish

Synodontis nigriventris

Empire Gudgeon - Hypseleotris compressa

Empire Gudgeon

Hypseleotris compressa

Archerfish - Toxotes jaculatrix

Archerfish

Toxotes jaculatrix

Mije Fish - Leporinus fasciatus

Mije Fish

Leporinus fasciatus

Stick Catfish - Farlowella acus

Stick Catfish

Farlowella acus

Red Rainbowfish - Glossolepis incisus

Red Rainbowfish

Glossolepis incisus

Altum Angelfish - Pterophyllum altum

Altum Angelfish

Pterophyllum altum

Weather Loach - Misgurnus spp

Weather Loach

Misgurnus spp

Es recomendable tener varios ejemplares de Dolar viviendo juntos, ya que es un pez de cardumen


Silver Dollar Fish - Metynnis argenteus

Silver Dollar Fish

Metynnis argenteus

Similar Sizes (14 Species)

They can coexist if they are the same size or very similar sizes, it does not work in all cases, there may be exceptions.


Blue Acara - Satanoperca daemon

Blue Acara

Satanoperca daemon

Glass Catfish - Kryptopterus bicirrhis

Glass Catfish

Kryptopterus bicirrhis

Black Phantom Tetra - Hyphessobrycon Megalopterus

Black Phantom Tetra

Hyphessobrycon Megalopterus

Espei Rasbora - Trigonostigma espei

Espei Rasbora

Trigonostigma espei

Forktail Blue-Eye - Pseudomugil furcatus

Forktail Blue-Eye

Pseudomugil furcatus

Blue-Eyed Pseudomugil - Pseudomugil paskai

Blue-Eyed Pseudomugil

Pseudomugil paskai

Pictus Catfish - Pimelodus pictus

Pictus Catfish

Pimelodus pictus

Dwarf Tetra - Hasemania nana

Dwarf Tetra

Hasemania nana

Semifasciolatus Barb - Puntius semifasciolatus

Semifasciolatus Barb

Puntius semifasciolatus

Moenkhausia Pittieri - Moenkhausia pittieri

Moenkhausia Pittieri

Moenkhausia pittieri

Bamboo Shrimp - Atyopsis moluccensis

Bamboo Shrimp

Atyopsis moluccensis

Spotted Dora Catfish - Agamyxus pectinifrons

Spotted Dora Catfish

Agamyxus pectinifrons

Pez ventosa de borneo - Sewellia lineolata

Pez ventosa de borneo

Sewellia lineolata

With Reservation (3 Species)

Compatible in some cases, it depends on the nature and personality of the fish.


Oscar Fish - Astronotus ocellatus

Oscar Fish

Astronotus ocellatus

Discus fish - Symphysodon aequifasciatus

Discus fish

Symphysodon aequifasciatus

Paradise Fish - Macropodus Opercularis

Paradise Fish

Macropodus Opercularis

Considerable size difference (38 Species)

They can coexist while they are similar in size or the size difference is not very abysmal, since as the fish grows it increases the chances of eating its partner that did not grow much.


Pangasianodon hypophthalmus - Pangasianodon hypophthalmus

Pangasianodon hypophthalmus

Pangasianodon hypophthalmus

Suckermouth catfish - Hypostomus plecostomus

Suckermouth catfish

Hypostomus plecostomus

Sun Catfish - Horabagrus brachysoma

Sun Catfish

Horabagrus brachysoma

Pez Loro - Red Parrot

Pez Loro

Red Parrot

Otocinclus Catfish - Otocinclus Affinis

Otocinclus Catfish

Otocinclus Affinis

Ember Tetra - Hemigrammus Rhodostomus

Ember Tetra

Hemigrammus Rhodostomus

Wasp Goby - Brachygobius Xanthozona

Wasp Goby

Brachygobius Xanthozona

Glowlight Tetra - Hemigrammus Erythrozonus

Glowlight Tetra

Hemigrammus Erythrozonus

Black Neon Tetra - Hyphessobrycon herbertaxelrodi

Black Neon Tetra

Hyphessobrycon herbertaxelrodi

Neon tetra fish - Paracheirodon innesi

Neon tetra fish

Paracheirodon innesi

Galaxy Rasbora - Danio margaritatus

Galaxy Rasbora

Danio margaritatus

Serpae Tetra - Hyphessobrycon Eques

Serpae Tetra

Hyphessobrycon Eques

Ember Tetra - Hyphessobrycon Amandae

Ember Tetra

Hyphessobrycon Amandae

Three lined Pencilfish - Nannostomus Trifasciatus

Three lined Pencilfish

Nannostomus Trifasciatus

Boraras Brigittae Fish - Boraras Brigittae

Boraras Brigittae Fish

Boraras Brigittae

Cherry Barb - Barbus titteya

Cherry Barb

Barbus titteya

Filamented Rainbowfish - Iriatherina Werneri

Filamented Rainbowfish

Iriatherina Werneri

Endler Guppy Fish - Poecilia Wingei

Endler Guppy Fish

Poecilia Wingei

Cockatoo Dwarf Cichlid - Apistogramma viejita

Cockatoo Dwarf Cichlid

Apistogramma viejita

Clown Pleco - Panaqolus maccus

Clown Pleco

Panaqolus maccus

Royal Pleco - Panaque nigrolineatus

Royal Pleco

Panaque nigrolineatus

Congo Tetra - Phenacogrammus interruptus

Congo Tetra

Phenacogrammus interruptus

Lacustris Rainbowfish - Melanotaenia lacustris

Lacustris Rainbowfish

Melanotaenia lacustris

Preacox Rainbowfish - Melanotaenia preacox

Preacox Rainbowfish

Melanotaenia preacox

Stiphodon Ornatus - Stiphodon ornatus

Stiphodon Ornatus

Stiphodon ornatus

Anentome Helena - Anentome helena

Anentome Helena

Anentome helena

IndoPlanorbis Exustus - Planorbis planorbis

IndoPlanorbis Exustus

Planorbis planorbis

Horned Snail - Tyloperlamania sp

Horned Snail

Tyloperlamania sp

Red Cherry - Neocaridina davidi

Red Cherry

Neocaridina davidi

Amano Shrimp - Caridina multidentata

Amano Shrimp

Caridina multidentata

Blue Bee Shrimp - Paracaridina sp

Blue Bee Shrimp

Paracaridina sp

Florida Dwarf Crayfish - Cambarellus diminutus

Florida Dwarf Crayfish

Cambarellus diminutus

Red-Backed Tetra - Hyphessobrycon bentosi

Red-Backed Tetra

Hyphessobrycon bentosi

Lemon Tetra - Hyphessobrycon pulchripinnis

Lemon Tetra

Hyphessobrycon pulchripinnis

Cardinal Tetra - Paracheirodon axelrodi

Cardinal Tetra

Paracheirodon axelrodi

Medaka Fish - Oryzias latipes

Medaka Fish

Oryzias latipes

Dwarf Swordtail - Heterandria formosa

Dwarf Swordtail

Heterandria formosa

Compatible if space is enough (6 Species)

They can coexist together if the aquarium they share is large and spacious enough for both species to feel good, as some fish may attack others to feel that they have little space and try to eliminate the competition.


False Discus - Heros severus

False Discus

Heros severus

Convict Cichlid - Amatitlania nigrofasciata

Convict Cichlid

Amatitlania nigrofasciata

Siamese Algae Eater - Crossocheilus Siamensis

Siamese Algae Eater

Crossocheilus Siamensis

Firemouth Cichlid - Cichlasoma meeki

Firemouth Cichlid

Cichlasoma meeki

Dwarf Cichlid - Apistogramma borellii

Dwarf Cichlid

Apistogramma borellii

Filamentous Tetra - Dicrossus filamentosus

Filamentous Tetra

Dicrossus filamentosus

Silver Dollar Fish

Metynnis argenteus

Silver Dollar Fish - Metynnis argenteus
  • Ph: 6 - 7
  • Temperature (c°): 24 - 28
  • Measures: 10 cm - 15cm
  • Aquarium Capacity:
    23 Liters - 6 Gallons
  • Alimentación: Omnivores
  • Colores: Gris, Silver
  • Comportamiento: Active, Eat fins, Peaceful, Shoal
  • Habitad: American
  • Preferencias del Acuario: Natural plants, Rocks, Sand
  • Tamaño: Medium
  • Tipo de Agua: Sweet water, Tropical waters
  • Velocidad de nado o movimiento: Normal
  • Zona de Nado: Swim in the middle of the aquarium