Ram Cichlids (Mikrogeophagus ramirezi) are a species of freshwater cichlid that can be found in slow-moving waters throughout the Orinoco River basin.

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

Compared to other Lake Malawi cichlids, Peacock cichlids are relatively peaceful. They come in a wide variety of bright colors, often in iridescent shades.

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.

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.

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.

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

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

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

Saltwater Goatfish are members of the family Mullidae. These fish have the ability to change color quickly to blend in with their surroundings.

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

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

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.

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.

Knifefish are a fascinating species of freshwater fish belonging to the eel family. They are characterized by their long, tapered bodies and anal fins.

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.

Freshwater gobies are generally peaceful community fish that can be kept with other community species. They belong to the family Gobiidae group of Goby.

Also known as cories or cory catfish, Corydoras catfish are bottom feeders and generally docile fish that do well in a community setting.

Pacu fish are a large family of freshwater fish related to the piranha. While some species look like piranhas, they are herbivores and are peaceful fish.

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.

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

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.

Pufferfish are a large family of saltwater fish. It can fill its elastic stomach with water until it expands to a large, almost globe-like shape.

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

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

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.

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

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.

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

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.