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Fish 🐠

42 detailed guides covering history, temperament, care, health, and training for every fish.

42 shown
Goldfish

Goldfish

The goldfish (Carassius auratus) is one of the oldest domesticated fish in the w…
Betta (Siamese Fighting Fish)

Betta (Siamese Fighting Fish)

The Betta (Betta splendens) is one of the most popular and most mis-housed aquar…
Guppy

Guppy

The Guppy (Poecilia reticulata) is one of the most popular and easiest tropical …
Neon Tetra

Neon Tetra

The Neon Tetra (Paracheirodon innesi) is the iconic small community fish - a tin…
Cardinal Tetra

Cardinal Tetra

The Cardinal Tetra (Paracheirodon axelrodi) is the larger and more brilliantly c…
Angelfish

Angelfish

The Angelfish (Pterophyllum scalare) is one of the most recognisable aquarium fi…
Discus

Discus

The Discus (Symphysodon species) is the "king of the aquarium" - a disc-shaped, …
Corydoras Catfish

Corydoras Catfish

Corydoras catfish (Corydoras genus) are small, sociable, armoured bottom-dwellin…
Bristlenose Pleco

Bristlenose Pleco

The Bristlenose Pleco (Ancistrus species) is a small armoured catfish from South…
Cichlid (Overview)

Cichlid (Overview)

Cichlids are an enormous family of freshwater fish (over 1,650 described species…
Molly / Platy / Swordtail (Livebearers)

Molly / Platy / Swordtail (Livebearers)

Molly, Platy, and Swordtail are three closely related livebearing fish from Cent…
Killifish

Killifish

Killifish are a diverse family of small colourful fish from around the world - o…
Dwarf Gourami

Dwarf Gourami

The Dwarf Gourami (Trichogaster lalius) is a small, brightly coloured labyrinth …
Oscar

Oscar

The Oscar (Astronotus ocellatus) is a large, intelligent South American cichlid …
Zebra Danio

Zebra Danio

The Zebra Danio (Danio rerio) is a small, hardy, endlessly active schooling fish…
Harlequin Rasbora

Harlequin Rasbora

The Harlequin Rasbora (Trigonostigma heteromorpha) is a small, peaceful schoolin…
Kuhli Loach

Kuhli Loach

The Kuhli Loach (Pangio kuhlii) is a small, peaceful, eel-shaped bottom-dweller …
Tiger Barb

Tiger Barb

The Tiger Barb (Puntigrus tetrazona) is a small, active, boisterous schooling fi…
Platy

Platy

The Platy (Xiphophorus maculatus) is a small, hardy, brightly coloured livebeare…
Molly

Molly

The Molly (Poecilia sphenops / Poecilia latipinna) is a hardy, peaceful livebear…
German Blue Ram

German Blue Ram

The German Blue Ram (Mikrogeophagus ramirezi) is a small, strikingly colorful dw…
Honey Gourami

Honey Gourami

The Honey Gourami (Trichogaster chuna) is a small, peaceful, beginner-friendly l…
Ember Tetra

Ember Tetra

The ember tetra (Hyphessobrycon amandae) is a tiny, glowing-orange nano fish fro…
Swordtail

Swordtail

The swordtail (Xiphophorus hellerii) is a hardy, active livebearer named for the…
Pearl Gourami

Pearl Gourami

The pearl gourami (Trichopodus leerii) is a graceful labyrinth fish covered in a…
Cherry Barb

Cherry Barb

The cherry barb (Puntius titteya) is a small, peaceful schooling fish prized for…
Otocinclus

Otocinclus

The otocinclus (Otocinclus sp.), often called the "oto" or dwarf sucker catfish,…
Rummynose Tetra

Rummynose Tetra

The rummynose tetra (Hemigrammus rhodostomus) is a striking schooling fish known…
Rosy Barb

Rosy Barb

The rosy barb (Pethia conchonius) is a hardy, active schooling fish from South A…
Endler

Endler

The Endler (Poecilia wingei), often called Endler's livebearer, is a tiny, dazzl…
Boesemani Rainbowfish

Boesemani Rainbowfish

The Boesemani rainbowfish (Melanotaenia boesemani) is one of the most spectacula…
Celestial Pearl Danio

Celestial Pearl Danio

The celestial pearl danio (Danio margaritatus), often sold as the "galaxy rasbor…
Apistogramma

Apistogramma

Apistogramma is a large genus of South American dwarf cichlids, with over 90 des…
Kribensis

Kribensis

The kribensis (Pelvicachromis pulcher) is a hardy West African dwarf cichlid and…
Convict Cichlid

Convict Cichlid

The convict cichlid (Archocentrus nigrofasciatus) is one of the toughest, most p…
Firemouth Cichlid

Firemouth Cichlid

The firemouth cichlid (Thorichthys meeki) is a handsome, medium-sized Central Am…
Electric Blue Acara

Electric Blue Acara

The electric blue acara is a stunning man-made colour form of the blue acara (An…
Clown Loach

Clown Loach

The clown loach (Chromobotia macracanthus) is a bold, orange-and-black striped l…
Siamese Algae Eater

Siamese Algae Eater

The Siamese algae eater (Crossocheilus oblongus, sometimes sold as Crossocheilus…
White Cloud Mountain Minnow

White Cloud Mountain Minnow

The white cloud mountain minnow (Tanichthys albonubes) is a tiny, hardy, cool-wa…
Glowlight Tetra

Glowlight Tetra

The glowlight tetra (Hemigrammus erythrozonus) is a small, peaceful nano tetra f…
Pea Puffer

Pea Puffer

The pea puffer (Carinotetraodon travancoricus), also called the dwarf or Indian …

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