A unique fact about Trunkfish: they secrete a poisonous material from their skin which acts as a chemical defense mechanism against predators.

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.

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.

Gourami are a relatively hardy species of freshwater aquarium fish and are thus suitable for most intermediate aquarists. Square shaped, compressed 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.

Anglerfish are a family of predatory fish consisting of over 200 separate species. They are characterized by their rod-like growths called illicium.

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.

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

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.

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

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

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.

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.

Rays are a large group of fish closely related to sharks. Ray fish are characterized by their flat bodies and a tough, elastic skeleton made of cartilage.

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

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

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

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

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

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

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.

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.

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.

Also referred to as wreckfish, reef fish, swallowtails and jewelfish, anthias are a large family of saltwater fish of over 200 different sub-species.

Known as trunkfish, cowfish and cofferfish; boxfish are a family of bony marine fish. They are known for their square shaped body and heavy armored scales.

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.

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

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

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