Care and Compatibility of Dwarf Swordtail - Heterandria formosa


Introduction

Heterandria formosa, commonly known as the dwarf swordtail, is a freshwater fish native to Central America. It is famous for its small size and the distinctive sword-like tail of the males. It is ideal for small to medium-sized tanks and is often found in various community setups.

Behavior

Heterandria formosa is a small and peaceful fish that thrives in community aquariums. It is very active and enjoys swimming in groups. It is highly social within its species, and keeping several individuals is recommended to avoid stress.

Sexual Dimorphism

Males are smaller and have a sword-like tail, while females are larger and lack this distinctive feature. This difference in tail morphology is apparent and used for sex identification.

Reproduction

This fish is viviparous, meaning it gives birth to live young rather than laying eggs. Males exhibit a distinctive sword-like tail used during courtship. It is recommended to provide a tank with plants and hiding spots for the fry to take refuge and develop.

Aquarium Conditions

It prefers tanks with abundant vegetation and hiding spots. It adapts well to a range of water parameters, but it is best kept with a pH of 6.5 to 7.5 and a temperature of 22 to 26°C. The environment should be calm with well-maintained water conditions.

Feeding

Heterandria formosa is omnivorous and accepts a varied diet. It does well with flake foods, small live invertebrates like daphnia, and frozen foods such as brine shrimp. A balanced diet is recommended to keep its health and vibrant color.

Complexity

Maintaining Heterandria formosa is relatively straightforward. It has no special requirements, but providing a suitable environment and a balanced diet is essential for its well-being.


In case you need more help, or if you want to know into any topic related to the Heterandria formosa (Dwarf Swordtail) 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 Heterandria formosa (Dwarf Swordtail) use the Aquarium simulation tool, if you do this you can test different ways to combine the Dwarf Swordtail 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 123 species compatible with the Heterandria formosa (Dwarf Swordtail) 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 (123)

Compatible (71 Species)

Compatible without any restriction


Dragon Violet Goby - Gobioides broussonnetii

Dragon Violet Goby

Gobioides broussonnetii

Royal Pleco - Panaque nigrolineatus

Royal Pleco

Panaque nigrolineatus

Glass Catfish - Kryptopterus bicirrhis

Glass Catfish

Kryptopterus bicirrhis

Pictus Catfish - Pimelodus pictus

Pictus Catfish

Pimelodus pictus

Swordtail fish - Xiphophorus hellerii

Swordtail fish

Xiphophorus hellerii

Lacustris Rainbowfish - Melanotaenia lacustris

Lacustris Rainbowfish

Melanotaenia lacustris

Molly fish - Poecilia sphenops

Molly fish

Poecilia sphenops

Yoyo Loach - Botia almorhae

Yoyo Loach

Botia almorhae

Upside-Down Catfish - Synodontis nigriventris

Upside-Down Catfish

Synodontis nigriventris

Spotted Dora Catfish - Agamyxus pectinifrons

Spotted Dora Catfish

Agamyxus pectinifrons

Goldeneye Dwarf Cichlid - Nannacara anomala

Goldeneye Dwarf Cichlid

Nannacara anomala

Guppy fish - Poecilia reticulata

Guppy fish

Poecilia reticulata

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

Semifasciolatus Barb - Puntius semifasciolatus

Semifasciolatus Barb

Puntius semifasciolatus

Female Siamese Fighting Fish - Betta Splendens Female

Female Siamese Fighting Fish

Betta Splendens Female

Platy Fish - Xiphophorus maculatus

Platy Fish

Xiphophorus maculatus

Red-eyed Tetra - Moenkhausia sanctaefilomenae

Red-eyed Tetra

Moenkhausia sanctaefilomenae

Apple Snail - Pomacea bridgesii

Apple Snail

Pomacea bridgesii

Cockatoo Dwarf Cichlid - Apistogramma viejita

Cockatoo Dwarf Cichlid

Apistogramma viejita

Congo Tetra - Phenacogrammus interruptus

Congo Tetra

Phenacogrammus interruptus

Preacox Rainbowfish - Melanotaenia preacox

Preacox Rainbowfish

Melanotaenia preacox

Moenkhausia Pittieri - Moenkhausia pittieri

Moenkhausia Pittieri

Moenkhausia pittieri

Stiphodon Ornatus - Stiphodon ornatus

Stiphodon Ornatus

Stiphodon ornatus

Dwarf Gourami - Colisa lalia

Dwarf Gourami

Colisa lalia

Zebrafish - Danio rerio

Zebrafish

Danio rerio

Black Skirt Tetra - Gymnocorymbus ternetzi

Black Skirt Tetra

Gymnocorymbus ternetzi

Harlequin Rasbora - Trigonostigma Heteromorpha

Harlequin Rasbora

Trigonostigma Heteromorpha

Emperor Tetra - Nematobrycon Palmeri

Emperor Tetra

Nematobrycon Palmeri

Three lined Pencilfish - Nannostomus Trifasciatus

Three lined Pencilfish

Nannostomus Trifasciatus

Bamboo Shrimp - Atyopsis moluccensis

Bamboo Shrimp

Atyopsis moluccensis

Chinese Neon Tetra - Tanichthys albonubes

Chinese Neon Tetra

Tanichthys albonubes

Otocinclus Catfish - Otocinclus Affinis

Otocinclus Catfish

Otocinclus Affinis

Ember Tetra - Hemigrammus Rhodostomus

Ember Tetra

Hemigrammus Rhodostomus

Serpae Tetra - Hyphessobrycon Eques

Serpae Tetra

Hyphessobrycon Eques

Cherry Barb - Barbus titteya

Cherry Barb

Barbus titteya

Filamented Rainbowfish - Iriatherina Werneri

Filamented Rainbowfish

Iriatherina Werneri

Black Phantom Tetra - Hyphessobrycon Megalopterus

Black Phantom Tetra

Hyphessobrycon Megalopterus

Forktail Blue-Eye - Pseudomugil furcatus

Forktail Blue-Eye

Pseudomugil furcatus

Horned Snail - Tyloperlamania sp

Horned Snail

Tyloperlamania sp

Amano Shrimp - Caridina multidentata

Amano Shrimp

Caridina multidentata

Lemon Tetra - Hyphessobrycon pulchripinnis

Lemon Tetra

Hyphessobrycon pulchripinnis

Cardinal Tetra - Paracheirodon axelrodi

Cardinal Tetra

Paracheirodon axelrodi

Neon tetra fish - Paracheirodon innesi

Neon tetra fish

Paracheirodon innesi

Glowlight Tetra - Hemigrammus Erythrozonus

Glowlight Tetra

Hemigrammus Erythrozonus

Black Neon Tetra - Hyphessobrycon herbertaxelrodi

Black Neon Tetra

Hyphessobrycon herbertaxelrodi

Red-Backed Tetra - Hyphessobrycon bentosi

Red-Backed Tetra

Hyphessobrycon bentosi

Medaka Fish - Oryzias latipes

Medaka Fish

Oryzias latipes

Dwarf Swordtail - Heterandria formosa

Dwarf Swordtail

Heterandria formosa

Ember Tetra - Hyphessobrycon Amandae

Ember Tetra

Hyphessobrycon Amandae

Ruby Tetra - Axelrodia riesei

Ruby Tetra

Axelrodia riesei

Boraras Brigittae Fish - Boraras Brigittae

Boraras Brigittae Fish

Boraras Brigittae

Endler Guppy Fish - Poecilia Wingei

Endler Guppy Fish

Poecilia Wingei

Caridina Shrimp - Caridina cf. Cantonensis

Caridina Shrimp

Caridina cf. Cantonensis

Espei Rasbora - Trigonostigma espei

Espei Rasbora

Trigonostigma espei

Blue-Eyed Pseudomugil - Pseudomugil paskai

Blue-Eyed Pseudomugil

Pseudomugil paskai

Nerite Snail - Neritina sp

Nerite Snail

Neritina sp

Dwarf Tetra - Hasemania nana

Dwarf Tetra

Hasemania nana

Anentome Helena - Anentome helena

Anentome Helena

Anentome helena

Red Cherry - Neocaridina davidi

Red Cherry

Neocaridina davidi

Florida Dwarf Crayfish - Cambarellus diminutus

Florida Dwarf Crayfish

Cambarellus diminutus

Galaxy Rasbora - Danio margaritatus

Galaxy Rasbora

Danio margaritatus

IndoPlanorbis Exustus - Planorbis planorbis

IndoPlanorbis Exustus

Planorbis planorbis

Blue Bee Shrimp - Paracaridina sp

Blue Bee Shrimp

Paracaridina sp

Pez ventosa de borneo - Sewellia lineolata

Pez ventosa de borneo

Sewellia lineolata

With Reservation (1 Species)

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


Considerable size difference (46 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.


Suckermouth catfish - Hypostomus plecostomus

Suckermouth catfish

Hypostomus plecostomus

Sun Catfish - Horabagrus brachysoma

Sun Catfish

Horabagrus brachysoma

Bala Shark - Balantiocheilus melanopterus

Bala Shark

Balantiocheilus melanopterus

Mije Fish - Leporinus fasciatus

Mije Fish

Leporinus fasciatus

Veil tail Goldfish - Carassius auratus I

Veil tail Goldfish

Carassius auratus I

Clown Loach - Chromobotia macracanthus

Clown Loach

Chromobotia macracanthus

Gray bichir - Polypterus senegalus

Gray bichir

Polypterus senegalus

Telescope goldfish - Carassius auratus II

Telescope goldfish

Carassius auratus II

Archerfish - Toxotes jaculatrix

Archerfish

Toxotes jaculatrix

Comet Goldfish - Carassius auratus III

Comet Goldfish

Carassius auratus III

Galaxy Plecostomus - Leporacanthicus sp L240

Galaxy Plecostomus

Leporacanthicus sp L240

Blue Acara - Satanoperca daemon

Blue Acara

Satanoperca daemon

Commando Cichlid - Nimbochromis venustus

Commando Cichlid

Nimbochromis venustus

Suckermouth Catfish - Gyrinocheilus Aymonieri

Suckermouth Catfish

Gyrinocheilus Aymonieri

Striped Raphael Catfish - Platydoras costatus

Striped Raphael Catfish

Platydoras costatus

Elephant Fish - Gnathonemus petersii

Elephant Fish

Gnathonemus petersii

Discus fish - Symphysodon aequifasciatus

Discus fish

Symphysodon aequifasciatus

Electric Blue Cichlid - Andinoacara pulcher

Electric Blue Cichlid

Andinoacara pulcher

Kissing Gourami - Helostoma temminckii

Kissing Gourami

Helostoma temminckii

Boeseman's Rainbowfish - Melanotaenia Boesemani

Boeseman's Rainbowfish

Melanotaenia Boesemani

Lemon Catfish - Hemiancistrus subviridis

Lemon Catfish

Hemiancistrus subviridis

Altum Angelfish - Pterophyllum altum

Altum Angelfish

Pterophyllum altum

Tetraodon Nigroviridis - Tetraodon Nigroviridis

Tetraodon Nigroviridis

Tetraodon Nigroviridis

Upside-Down Catfish - Synodontis eupterus

Upside-Down Catfish

Synodontis eupterus

Stick Catfish - Farlowella acus

Stick Catfish

Farlowella acus

Freshwater angelfish - Pterophyllum scalare

Freshwater angelfish

Pterophyllum scalare

Golden Royal Pleco - Sturisoma aureum

Golden Royal Pleco

Sturisoma aureum

Severum Cichlid - Heros efasciatus

Severum Cichlid

Heros efasciatus

Celestial eye goldfish - Carassius auratus V

Celestial eye goldfish

Carassius auratus V

Silver Dollar Fish - Metynnis argenteus

Silver Dollar Fish

Metynnis argenteus

Red-tailed Black Shark - Epalzeorhynchus frenatus

Red-tailed Black Shark

Epalzeorhynchus frenatus

Denison Barb - Puntius denisonii

Denison Barb

Puntius denisonii

Flag Cichlid - Mesonauta festivus

Flag Cichlid

Mesonauta festivus

Clown Pleco - Panaqolus maccus

Clown Pleco

Panaqolus maccus

Red Rainbowfish - Glossolepis incisus

Red Rainbowfish

Glossolepis incisus

Pearlscale Goldfish - Carassius auratus VI

Pearlscale Goldfish

Carassius auratus VI

Firemouth Cichlid - Cichlasoma meeki

Firemouth Cichlid

Cichlasoma meeki

Siamese Algae Eater - Crossocheilus Siamensis

Siamese Algae Eater

Crossocheilus Siamensis

Pearl gourami - Trichogaster leerii

Pearl gourami

Trichogaster leerii

Coolie loach - Pangio kuhlii

Coolie loach

Pangio kuhlii

Leopard Cactus Pleco - Hypancistrus Furunculus L199

Leopard Cactus Pleco

Hypancistrus Furunculus L199

Empire Gudgeon - Hypseleotris compressa

Empire Gudgeon

Hypseleotris compressa

Butterfly Loach - Beaufortia leveretti

Butterfly Loach

Beaufortia leveretti

Kribensis Cichlid - Pelvicachromis pulcher

Kribensis Cichlid

Pelvicachromis pulcher

Weather Loach - Misgurnus spp

Weather Loach

Misgurnus spp

Compatible if space is enough (5 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.


Male siamese fighting fish - betta splendens male

Male siamese fighting fish

betta splendens male

Filamentous Tetra - Dicrossus filamentosus

Filamentous Tetra

Dicrossus filamentosus

Dwarf Cichlid - Apistogramma borellii

Dwarf Cichlid

Apistogramma borellii

Multis Fish - Neolamprologus multifasciatus

Multis Fish

Neolamprologus multifasciatus

Myanmar Darío - Dario sp Myanmar

Myanmar Darío

Dario sp Myanmar

Dwarf Swordtail

Heterandria formosa

Dwarf Swordtail - Heterandria formosa
  • Ph: 6.5 - 7.5
  • Temperature (c°): 22 - 26
  • Measures: 3 cm - 4cm
  • Aquarium Capacity:
    6 Liters - 2 Gallons
  • Alimentación: Omnivores
  • Comportamiento: Active, Peaceful, Shoal
  • Habitad: American
  • Preferencias del Acuario: Caves, Logs, Natural plants, Rocks, Sand
  • Tamaño: Very small
  • Taxonomía: Fish
  • Tipo de Agua: Sweet water, Tropical waters
  • Velocidad de nado o movimiento: Normal
  • Zona de Nado: Swim in the middle of the aquarium