Animal-World > Aquarium Tropical Fish

Freshwater Fish of the World

Click to learn about Aquarium Plants
- Aquatic plant guides for ferns and mosses, stem plants, rosette plants, and plants for the pond. Plants can be the main aquarium attraction or used to enhance your aquarium's beauty and health.
Click to learn about Catfish
- Plecostomus, Cory, Pangasius, Banjo Catfish, Upsidedown Catfish... See all types of catfish from thorny to armored, talking to walking, suckermouth, whiskered, flatnose and more!
Click to learn about Characins
- Tetras, Silver Dollars, Pencilfish, Hatchetfish, Pacu,... all sorts of favorite tropical fish for both beginners and advanced fish keepers
Click to learn about Cichlids
- All types of Cichlids! Fish Guides for African Cichlids, South American Cichlids, and Dwarf Cichlids from both continents
Click to learn about Cyprinids
- Fish Guides for Barbs, Danios, Rasboras, Sharks, algae eaters, and more... popular tropical fish for beginning aquarist and experts alike.
Click to learn about Freshwater Eels
- Aquarium Eels, Fish Guides for all sorts of freshwater Eels, beauties like the Spiny Eels, Electric Eel, Fire Eel, American Eel, Spaghetti Eels, and more.
Click to learn about Goldfish Types
- Fancy Goldfish, Fantail Goldfish, Commet Goldfish, Black Moor, Bubble Eye, Oranda, Shubunkin, Ryukin, Lionhead, and more. Great fish for beginners!
Click to learn about Hillstream Loaches
- River Loaches are designed to cling to rocks in fast moving waters! The family Balitoridae favorites include the Batik, Chinese Loach, Rainbow Loach, Zipper Loach, and more.
Click to learn about Killifish
- Killifish are coloful, intriguing fish from all sorts of environments. With over 1250 Killifish species, these mostly small little beauties ranging from Tooth Carps including Lampeye, Medaka, and Panchax, to Pupfish and Topminnow fish
Click to learn about Knifefish
- Knifefish species, looks like a knife but swims like a fish! All sorts of knifefish beauties like the Clown Knifefish, Elegant Knifefish, Black Ghost Knifefish, Aba, Centipede, Featherfin and more.
Click to learn about Labyrinth Fish
- Bettas and Gouramis are just some of the Labyrinth fish, Anabantoids also include Paradise Fish, Giant Gourami and more.
Click to learn about Livebearing Aquarium Fish
- Mollies, Guppies, Platy fish, Swordtail fish, and Four-eyed Fish (Anableps). Great fish for beginners, easy to keep and breed!
Click to learn about Loaches
- Loaches are great aquarium scavengers and interesting fish too. Called thorny-eyes, loaches have spines right between the eyes! Popular species are Clown Loach, Kuhli Loach, Weather Loach or Dojo, Botia, and many more!
Click to learn about Perches
- All types of Perches and Perch-like fish, fish guides forM ono or Moonfish, Glassfish, Archers, Scats, True Perches, Datnoids, Sunfish, Cardinalfish and more.
Click to learn about Puffer Fish
- Pufferfish are chubby, personable tropical fish like the popular Green Spotted Puffer Fish, Golden Puffer, Fahaka Puffer, Amazon Puffer and more. They are also called Blowfish, Balloonfish and even Toadies!
Click to learn about Rainbow Fish
- Australasian Blue Eyes bring the Colors of the rainbow alive in the aquarium. A description and history of rainbow fish, a list of rainbowfish species and fish guides for each
Click to learn about Unusual Fish
- Unusual Fish, the strangest to the most decorative tropical fish. Arowana's give a view of our ancient prehistoric, Butterflyfish delicate beauty, while Tonguefish, Lionfish and more are simply strange fish.
Colored Skirt Tetra
Colored Skirt Tetra
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Colored Skirt Tetra, Gymnocorymbus ternetzi Variety, Colored White Tetra
Cardinal Tetra
Cardinal Tetra
Cardinal Tetra, Paracheirodon axelrodi Characin Fish Guide
Congo Tetra
Congo Tetra
Congo Tetra, Phenacogrammus interruptus Characin Fish Guide
Buenos Aires Tetra
Buenos Aires Tetra
Buenos Aires Tetra, Hyphessobrycon anisitsi, Characin Fish Guide
Black Pacu
Black Pacu
Black Pacu, Colossoma macropomum, Tambaqui, Black-finned Pacu
African Tiger Fish
African Tiger Fish
African Tiger Fish, Tiger Fish, or Tigerfish, Hydrocynus vittatus
See all types of cichlids

Coming from the continent of Africa are the largest, smallest, and most beautiful cichlids on the planet!

African cichlids take the prize for the largest and smallest cichlids in the world! The Nanochromis transvestitusus is the smallest known cichlid, barely reaching over an inch in length. . . .
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Big Oscar Fish