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

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

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

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.

Freshwater sharks are a group of freshwater fish belonging to the minnow family. Freshwater sharks have long, powerful bodies and large dorsal fins,

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.

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

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.

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

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.

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.

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

Silver dollars are an extremely popular species of freshwater fish. They get their name from their almost round shaped bodies and silver coloring.

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.

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

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.

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.

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.

Saltwater sharks are some of the most majestic and most dangerous species kept in the aquarium hobby. They are only recommended for advanced hobbyists.

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

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.

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.

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

Squirrelfish are a family of ray-finned saltwater fish. They are characterized by their large eyes and long, sharp dorsal spines.

Halfbeak fish are a type of marine and brackish water fish belonging to the family Hemiramphidae. They are a little less colorful than some marine species.

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.

African cichlids are considered to be one of the most diverse, intelligent, active and colorful families of freshwater fish in the modern aquarium hobby.

Butterflyfish are a family of saltwater fish made up of over 100 distinct species. They resemble angelfish and have compressed, disk shaped bodies.

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