Clownfish
Clownfish are the most popular species of fish amongst saltwater aquarium enthusiasts. They are characterized by their beautiful colorations..
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.
Tigerfish
The Tigerfish is a type of freshwater fish belonging to the genus Datnioides (Datnoids). It's named for the vertical stripes that run all along its body.
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.
Anglerfish
Anglerfish are a family of predatory fish consisting of over 200 separate species. They are characterized by their rod-like growths called illicium.
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.
Saltwater Eels
Saltwater eels are one of the most fascinating and demanding species of fish kept by aquarists. They are characterized by their long, snake like bodies.
Grouper
Grouper are a large family of saltwater fish characterized by their stout bodies and over-sized mouths. They are hardy, colorful and fascinating species.
Dragonets
Dragonets are a family of small, vibrantly colored saltwater fish. There are over 130 species of dragonets identified and similar in appearance to gobies.
Gar
Characterized by their long bodies and similarly elongated jaws, gar are kept in large aquariums and require very specialized care by experienced aquarists.
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.
Killifish
Killifish are a large family of freshwater fish comprising over a thousand different species. Most species are no more than an inch or two in size.
Ray Fish – Saltwater
The ray fish's skeleton is made up entirely of cartilage and it is characterized by its flattened body and large pectoral fins which are fused to its head.
Catfish
Catfish are a large family of freshwater fish extremely popular in the aquarium trade. Extremely hardy and make for fascinating aquarium specimens.
Hatchetfish
Freshwater hatchetfish are a type of ray-finned fishes belonging to the family Gasteropelecidae. There are three genera, with nine different species.
Triggerfish
Triggerfish are a fish comprised of roughly 40 distinct species. They are characterized by their laterally compressed bodies and comparatively large heads.
Molly
The Molly is one of the most popular species of livebearers in aquarium culture. It is a hardy and adaptable species and are great for beginner aquarists.
Mandarinfish
Sometimes referred to as dragonets or mandarinfish, mandarins are small, brightly colored saltwater fish belonging to the Synchiropus genus.
Hawkfish
Hawkfish are species of saltwater fish closely related to the lionfish. They are characterized by their large heads and somewhat elongated, thick bodies.
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.
Danios
Danios are a popular species of freshwater fish in the aquarium hobby. They are characterized by two pairs of long barbells that hang from their mouth.
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.
Piranha
Piranha are a family of extremely aggressive freshwater fish. They are characterized by two rows of extremely sharp, triangular shaped teeth.
Rainbowfish
Rainbowfish are a family of small freshwater fish that get their name from their iridescent colorations that change shades in different light settings.
Reedfish
Also referred to as Rope Fish, Dragon Fish and Snake Fish, reedfish are a curious species of fish characterized by their long, snake-like bodies.
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.
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.
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.
Betta Splenden
Betta Splenden fish are one of the hardiest species of freshwater aquarium fish and are an incredibly popular mainstay among hobbyists.
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.
Swordtail
A relatively hardy and easy to care for livebearer, the swordtail is one of the most popular aquarium fish species among beginner aquarists.
Goatfish
Saltwater Goatfish are members of the family Mullidae. These fish have the ability to change color quickly to blend in with their surroundings.
Surgeonfish
The species known as surgeonfish belong to the Acanthuridae family. Surgeonfish vary greatly in size from one species to another.
Frogfish
The species known as frogfish are all members of the family Antennariidae which is sometimes known as the anglerfish family, especially in Australia.
Darters
Darters are a type of small freshwater fish similar to perch that can be found in freshwater streams throughout North America.
Loaches
Loaches are a large family of highly intelligent freshwater fish. There are over 200 different species and they are characterized by their eel-like bodies.
Paradise Fish
Paradise fish are a colorful species of freshwater fish belonging to the gourami family. They were the first tropical fish to be imported 150 years ago.
Batfish
Batfish are a family of marine fish, similar in appearance but unrelated to the angelfish. Juveniles are characterized by their bat-like side profile.
Mollies – Freshwater
Mollies are a freshwater fish commonly known as the Molly. They are a hardy species of fish that adapts well to a variety of different water conditions.
Trunkfish
A unique fact about Trunkfish: they secrete a poisonous material from their skin which acts as a chemical defense mechanism against predators.
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.
Knifefish
Knifefish are a fascinating species of freshwater fish belonging to the eel family. They are characterized by their long, tapered bodies and anal fins.
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.
Dartfish
Dartfish are a family of small, colorful saltwater fish. They are similar in appearance to gobies and are characterized by their long, eel-like bodies.
Koi
Koi are one of the most popular types of pond fish. Their bodies, which are long and powerful, are very similar to that of the wild carp.
Acara Cichlids
Most acara cichlids are somewhat aggressive and territorial and they have a tendency to eat smaller fish. Acaras come in a wide range of colors.
Saltwater Sharks
Saltwater sharks are some of the most majestic and most dangerous species kept in the aquarium hobby. They are only recommended for advanced hobbyists.
Blennies
Blennies are a species of marine fish made up of 6 distinct families. They are characteristically small in size and are similar to gobies in appearance.
Rabbitfish
General description Rabbitfish are a fairly large family of colorful saltwater fish. They are characterized by their rectangular bodies and small, protruding…
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.
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.
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.
Basslet
Basslets are a small family of marine fish. Most species of basslet rarely exceed 4 inches in length and are known for their vibrant colorations.
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.
Snakeheads
Snakeheads are a species of tropical fish popular among experienced aquarists. They get their name from their flattened shape and the scales on their head.
Goldfish
Goldfish are one of the first species of fish to be domesticated and are also one of the most commonly kept aquarium pets. Peaceful and hardy fish breed.
Lionfish
Lionfish are a species of fish belonging to the scorpionfish family. They are known for their bright colorations, flowing fins and venomous tentacles.
Tangs
Tangs are a highly popular species of saltwater aquarium fish. They are characterized by their laterally compressed bodies and scalpel-like spines.
Jawfish
Jawfish are species of saltwater fish very similar in appearance to blennies. They are characterized by their comparatively larger mouths and heads.
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.