Fish Breeds

There are plenty of fish in the sea, but how do you know which type to choose for your aquarium? Whether you’re a beginner, intermediate or advanced aquarist, you need to know all about the new inhabitants you’re welcoming in your tank. Do you have a freshwater, brackish or saltwater tank? Choosing the right breed will largely depend on the type of water in your aquarium. Of course, when it comes to fish breeds, you’ll also need to know what do they eat, what types of fish will they get along with, how big will they grow – and we cover all of these important points in our Fish Breed section.

Instead of endlessly scrolling through pages and pages of breed characteristics, use Petguide.com’s Fish Breeds research tool for quick results. Choose the desired size and friendliness level of the species, as well as the type of aquarium you have, and instantly get a list of breeds that match your preferences. Need a saltwater species, that is large and non-aggressive? Or a small, feisty one that loves freshwater aquariums? Tick all the boxes and pick the breed you like best of the ones that are offered. Simple as that!

When you get the results, you can easily access all the main information about the species with just one click. Check if the breed you like is easy to care for, what to feed them, how to breed them, and which fishy friends they like spending time with. Petguide.com ensures that everything you need to know about the species is right at your fingertips!

Petguide.com’s Fish Breeds tool will help you create a thriving, beautiful ecosystem by choosing the right fauna for your tank. In case you need more information about fish care and aquarium maintenance, take a look at our Fish blog.

Cardinalfish

Cardinalfish are a large family of saltwater fish made up of over 200 sub-species. Most species are extremely colorful and are a couple of inches in length.

Chromis

Chromis are an extremely popular family of saltwater fish. They are characterized by their slim, oval shaped bodies and bright colorations.

Lake Victoria Cichlids

Lake Victoria cichlids are fairly aggressive fish. These cichlids are some of the most vibrantly colored freshwater fishes in the world.

Rasbora

Rasboras are a family of minnow-type freshwater fish characterized by their small bodies and vibrant colorations. They are an extremely peaceful fish.

Pipefish

Pipefish are a species of saltwater fish related to seahorses. However, the pipefish's body, unlike the seahorse's, is long, straight and snake-like.

Lake Tanganyika Cichlids

There are more than 250 species of Lake Tanganyika cichlids that have been identified, in a wide variety of colors and patterns.

Triggerfish

Triggerfish are a fish comprised of roughly 40 distinct species. They are characterized by their laterally compressed bodies and comparatively large heads.

Darters

Darters are a type of small freshwater fish similar to perch that can be found in freshwater streams throughout North America.

Rainbowfish

Rainbowfish are a family of small freshwater fish that get their name from their iridescent colorations that change shades in different light settings.

Scorpionfish

Scorpionfish are a family of marine fish comprised of over a 100 different species. They are counted among some of the most poisonous animals in the world.

Gobies

Gobies are one of the largest families of fish comprised of over 2000 separate species. Most species rarely grow more than a couple of inches in length.

Hap Cichlids

Hap cichlids exhibit a wide variety of colorations and patterns ranging from solid blue to multicolored combinations of red, orange, and purple.

Catfish

Catfish are a large family of freshwater fish extremely popular in the aquarium trade. Extremely hardy and make for fascinating aquarium specimens.

Wrasse

Wrasse are large family of saltwater fish made up of over 600 different species. They are also one of the most popular species of marine aquarium fish.

Barbs

Barbs are a large family of freshwater fish that are a popular choice in the aquarium hobby. Different species of barbs come in a dazzling array of colors.

Archerfish

Archerfish are one of the most fascinating species of brackish water aquarium fish. They get their names from shooting insects with powerful jets of water.

Sweetlips

Sweetlips are a species of fish belonging to the grunt family. They are characterized by their big, luscious lips and come in a variety of colorations.

Mbuna Cichlids

Mbuna cichlids are some of the most brightly colored freshwater fishes in the world, exhibiting a wide range of colors and patterns.

Clownfish

Clownfish are the most popular species of fish amongst saltwater aquarium enthusiasts. They are characterized by their beautiful colorations..

Filefish

Filefish are a curious species of saltwater fish. They are characterized by their rhomboid shaped bodies, thick, sandpaper-like skin and small, fleshy fins.

Hatchetfish

Freshwater hatchetfish are a type of ray-finned fishes belonging to the family Gasteropelecidae. There are three genera, with nine different species.

Arowana

Sometimes referred to as the dragon fish, arowana fish are one of the most beautiful and most fascinating species of fish in the aquarium trade.

Grunts

Grunts are a family of saltwater fish made up of 150 different sub-species, some of which have been successfully introduced to the aquarium hobby.

Pencilfish

Pencilfish are named for their slender, pencil-like shape and they generally grow no more than 2 inches long. They are peaceful by nature.

Glass Fish

The glass fish is a fascinating species of aquarium fish. Its most astounding feature is its transparent body which reveals its bones and internal organs.

Saltwater Goby Fish

Saltwater Goby Fish are a large family of fish made up of over 2000 distinct species. Most species of saltwater goby fish are extremely small in size.

Minnow

The name Minnow is given to freshwater fish belonging to the family Cyprinidae. These fish are fairly small and they are generally very peaceful.

Scat

Also known as argus fish and spotted scats, scats are one of the most popular species of brackish water aquarium fish. They have square shaped bodies.

Damselfish

Damselfish are a colorful species of saltwater fish popular in the modern saltwater aquarium hobby. They come from tropical coral reefs around the world.

Ray Fish

Rays are a large group of fish closely related to sharks. Ray fish are characterized by their flat bodies and a tough, elastic skeleton made of cartilage.

Parrotfish

Parrotfish are a marine fish with over 90 distinct species. They are characterized by their parrot-like beaks that are made of tightly compressed teeth.

Tetra

Tetra are a species of tropical fish extremely popular in the aquarium trade. There are over 150 different species of tetras, most have small bodies.

Unicornfish

Species belonging to the genus Naso are typically referred to as unicornfish because they have a long pointed protuberance in the middle of their heads.

Flagfish

Flagfish are a small fish that are semi-aggressive in nature. These fish may not do well if multiple males of the same species are kept together.

New World Cichlids

New World Cichlids are some of the most diverse freshwater fish species in the world. The colors and patterns of New World Cichlids are highly varied.

Harlequin Tuskfish

Harlequin tuskfish are a colorful species of wrasse. They are characterized by their sharp blue, tusk-like teeth and distinctive body colorations.

Dottyback

Dottyback are a family of small saltwater fish made up of over 100 distinct species. They are hardy, intelligent and vibrantly colored, making them popular

Boxfish

Known as trunkfish, cowfish and cofferfish; boxfish are a family of bony marine fish. They are known for their square shaped body and heavy armored scales.

Discus

Often regarded as the king of the freshwater aquarium, discus fish are one of the most beautiful species of aquarium fish; and one of the hardest to keep.

Tangs

Tangs are a highly popular species of saltwater aquarium fish. They are characterized by their laterally compressed bodies and scalpel-like spines.

Platies

Platies are fairly small fish, growing no more than 3 inches long, and they are very peaceful and non-aggressive. These fish are usually drab in color.

Piranha

Piranha are a family of extremely aggressive freshwater fish. They are characterized by two rows of extremely sharp, triangular shaped teeth.

Hawkfish

Hawkfish are species of saltwater fish closely related to the lionfish. They are characterized by their large heads and somewhat elongated, thick bodies.

Puffer Fish

Puffer fish are a curious species of brackish water fish. They are characterized by their almost box shaped bodies and somewhat comical swimming movements.

Moorish Idol

The Moorish idol is closely related to surgeonfish. These fish are characterized by their vertically compressed, disk-like bodies and bold colorations.

Plecostomus

The Plecostomus is a type of armored catfish that is found throughout the tropical regions of northeastern South America.

Drum Fish

There are several species of fish that carry the "drum" name. With more than 250 species, drum fish exhibit a wide range of colors and patterns.

Asian Cichlids

There are nine species of Asian cichlids which can be found in Lebanon, Israel, Syria, Iran, India, and Sri Lanka. These cichlids are mouth brooders.

Snappers

Snappers are generally non-aggressive fish that do well in very large saltwater community tanks. Most live in rocky or coral reefs, and come in many colors.

Surgeonfish

The species known as surgeonfish belong to the Acanthuridae family. Surgeonfish vary greatly in size from one species to another.

Anthias

Also referred to as wreckfish, reef fish, swallowtails and jewelfish, anthias are a large family of saltwater fish of over 200 different sub-species.

Lionfish

Lionfish are a species of fish belonging to the scorpionfish family. They are known for their bright colorations, flowing fins and venomous tentacles.

Seahorses

Seahorses are characterized by their equine appearance. Its upper body is shaped like the head of a horse and its lower body ends in an elongated tail.

Eels

Eels are one of the more fascinating species of fish in the aquarium trade. They are characterized by their long bodies and snake-like heads.

Oscars

Oscars are one of the most popular species of freshwater fish in the aquarium hobby today. They are also a highly intelligent species of fish.

Trunkfish

A unique fact about Trunkfish: they secrete a poisonous material from their skin which acts as a chemical defense mechanism against predators.

Hogfish

Hogfish are a reef-dwelling species of wrasse popular in the modern aquarium trade. They possess a long, pig-like snout they use to search for food.

Flounder

The flounder is also known as a flatfish; a fitting name because its body is laterally compressed and it lays on its side, burrowing into the substrate.

Mandarinfish

Sometimes referred to as dragonets or mandarinfish, mandarins are small, brightly colored saltwater fish belonging to the Synchiropus genus.

Gourami

Gourami are a relatively hardy species of freshwater aquarium fish and are thus suitable for most intermediate aquarists. Square shaped, compressed body.