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

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

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.

Jawfish are species of saltwater fish very similar in appearance to blennies. They are characterized by their comparatively larger mouths and heads.

The name porkfish is usually used to describe a particular species of grunt that can be found in the tropical regions of the world.

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.

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.

A relatively hardy and easy to care for livebearer, the swordtail is one of the most popular aquarium fish species among beginner aquarists.

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

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

Batfish are a family of marine fish, similar in appearance but unrelated to the angelfish. Juveniles are characterized by their bat-like side profile.

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.

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

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

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.

Also known as the Malayan Angel and fingerfish, the mono is a beautiful species of brackish water fish. Monos are known by their diamond shaped bodies.

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.

Dragonets are a family of small, vibrantly colored saltwater fish. There are over 130 species of dragonets identified and similar in appearance to gobies.

One of the most commonly available species of freshwater aquarium fish, the guppy is a long favorite amongst aquarium enthusiasts worldwide.

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.

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.

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.

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.

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

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

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

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.

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

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

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.