Freshwater Sharks
Freshwater sharks are a group of freshwater fish belonging to the minnow family. Freshwater sharks have long, powerful bodies and large dorsal fins,
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.
Freshwater Gobies
Freshwater gobies are generally peaceful community fish that can be kept with other community species. They belong to the family Gobiidae group of Goby.
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.
Ram Cichlids
Ram Cichlids (Mikrogeophagus ramirezi) are a species of freshwater cichlid that can be found in slow-moving waters throughout the Orinoco River basin.
Lionfish
Lionfish are a species of fish belonging to the scorpionfish family. They are known for their bright colorations, flowing fins and venomous tentacles.
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.
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.
Butterflyfish
Butterflyfish are a family of saltwater fish made up of over 100 distinct species. They resemble angelfish and have compressed, disk shaped bodies.
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.
Goatfish
Saltwater Goatfish are members of the family Mullidae. These fish have the ability to change color quickly to blend in with their surroundings.
Squirrelfish
Squirrelfish are a family of ray-finned saltwater fish. They are characterized by their large eyes and long, sharp dorsal spines.
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.
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.
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.
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.
Harlequin Tuskfish
Harlequin tuskfish are a colorful species of wrasse. They are characterized by their sharp blue, tusk-like teeth and distinctive body colorations.
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.
Hap Cichlids
Hap cichlids exhibit a wide variety of colorations and patterns ranging from solid blue to multicolored combinations of red, orange, and purple.
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.
Angelfish
Angelfish are one of the most popular species of freshwater fish in the aquarium hobby. They are characterized by their vertically compressed bodies.
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.
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.
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.
Peacock Cichlids
Compared to other Lake Malawi cichlids, Peacock cichlids are relatively peaceful. They come in a wide variety of bright colors, often in iridescent shades.
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.
Plecostomus
The Plecostomus is a type of armored catfish that is found throughout the tropical regions of northeastern South America.
Jawfish
Jawfish are species of saltwater fish very similar in appearance to blennies. They are characterized by their comparatively larger mouths and 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.
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.
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.
Chromis
Chromis are an extremely popular family of saltwater fish. They are characterized by their slim, oval shaped bodies and bright colorations.
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.
Trunkfish
A unique fact about Trunkfish: they secrete a poisonous material from their skin which acts as a chemical defense mechanism against predators.
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.
Clownfish
Clownfish are the most popular species of fish amongst saltwater aquarium enthusiasts. They are characterized by their beautiful colorations..
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.
Swordtail
A relatively hardy and easy to care for livebearer, the swordtail is one of the most popular aquarium fish species among beginner aquarists.
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.
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.
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.
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.
Porkfish
The name porkfish is usually used to describe a particular species of grunt that can be found in the tropical regions of the world.
Gar
Characterized by their long bodies and similarly elongated jaws, gar are kept in large aquariums and require very specialized care by experienced aquarists.
Frogfish
The species known as frogfish are all members of the family Antennariidae which is sometimes known as the anglerfish family, especially in Australia.
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.
Tangs
Tangs are a highly popular species of saltwater aquarium fish. They are characterized by their laterally compressed bodies and scalpel-like spines.
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.
Foxface Rabbitfish
The foxface rabbitfish is a popular species of saltwater fish belonging to the rabbitfish family. When stressed, they can change to a mottled brown color.
Silver Dollar
Silver dollars are an extremely popular species of freshwater fish. They get their name from their almost round shaped bodies and silver coloring.
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.
Hawkfish
Hawkfish are species of saltwater fish closely related to the lionfish. They are characterized by their large heads and somewhat elongated, thick bodies.
Anglerfish
Anglerfish are a family of predatory fish consisting of over 200 separate species. They are characterized by their rod-like growths called illicium.
Catfish
Catfish are a large family of freshwater fish extremely popular in the aquarium trade. Extremely hardy and make for fascinating aquarium specimens.
Moorish Idol
The Moorish idol is closely related to surgeonfish. These fish are characterized by their vertically compressed, disk-like bodies and bold colorations.
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.
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.
Rasbora
Rasboras are a family of minnow-type freshwater fish characterized by their small bodies and vibrant colorations. They are an extremely peaceful fish.
Guppy
One of the most commonly available species of freshwater aquarium fish, the guppy is a long favorite amongst aquarium enthusiasts worldwide.
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.
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