Featured Article: Dwarf Sucking Catfish
The Dwarf Sucking Catfish is small and prefers to stay toward the bottom of the tank. He'll help you out, too, by eating algae that grows quickly in aquariums. See more »
aquarium fish library
Aquarium fish can differ from their counterparts in oceans and streams and owners should be aware. Learn about some common and not so common aquarium fish, such as the Egyptian Mouthbrooder, Penguin Fish, and Tiger Barb.
Penguin Fish
This warm-weather Penguin Fish likes to live among other small and peaceful fish. Read more about the South American Penguin Fish at HowStuffWorks.
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Pictus Cat
The Pictus Cat is not suitable for community tanks since it will eat any fish small enough to swallow. Read more about the night-feeding Pictus Cat.
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Platy
Although the Platy fish is a hardy species, the young fish are almost always eaten by other fish in the tank. Learn more about this popular species.
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Red Rainbowfish
Female Red Rainbowfish are a soft, pale golden color, while the males are fiery red. Read more about the colorful and deep-bodied Red Rainbowfish.
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Red-Eye Tetra
The Red-Eye Tetra likes to take a nip now and then at the longer fins of other fish. Read about the otherwise undemanding Red-Eye Tetra fish.
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Red-Humped Eartheater
A South-American native, The Red-Humped Eartheater has a fierce appearance but is rather peaceful and can be kept in a community tank. Learn much more about the Red-Humped Eartheater.
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Red-Tailed Shark
The Red-Tailed Shark is not really a shark, despite its triangular dorsal fin and its common name. Find a profile and picture of the Red-Tailed Shark.
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Rosy Barb
The dark-finned Rosy Barb male takes on a deep pink hue when he is ready to mate. Read more about the hardy yet peaceful Rosy Barb at HowStuffWorks.
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Scissortail Rasbora
The Scissortail Rasbora is an entertaining freshwater fish. Learn about and see how the large and active Scissortail Rasbora can enhance your freshwater aquarium.
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Siamese Fighting Fish
Siamese Fighting Fish are a highly aggressive freshwater species. Find a profile and picture of the colorful Siamese Fighting Fish.
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Spotted Pleco
The Spotted Pleco is a suckermouth freshwater catfish that often disturbs aquascaping. Find a profile and picture of the algae-loving Spotted Pleco.
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Stripe-Tailed Catfish
The Stripe-Tailed Catfish is a wild-bred freshwater fish from the Amazon River. Find a profile and picture of the hefty Stripe-Tailed Catfish.
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Striped Raphael Catfish
The Striped Raphael Catfish is a large freshwater fish that is more active at night. Find a profile and picture of this long Striped Raphael Catfish.
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Swallowtail Cichlid
The Swallowtail Cichlid is a peaceful freshwater fish that originally hailed from East Africa. Read about and see how the Swallowtail Cichlid might fare in your aquarium.
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Swordtail
The Swordtail is a live-bearer species of freshwater fish that appears in a variety of colors. Find a profile and picture of this sometimes aggressive and hardy Swordtail.
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Three-Spot Gourami
The Three-Spot Gourami, also known as the Blue Gourami, is a peaceful freshwater fish. See a profile and a picture of the Three-Spot Gourami.
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Tiger Barb
The Tiger Barb is an active, schooling species of freshwater fish. Find a profile and picture of the Tiger Barb to find out if it fits in your aquarium.
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Upside-Down Catfish
The Upside-Down Catfish is a community freshwater aquarium fish that sometimes swims upside-down, as the name suggests. Read all about and see a picture of the unusual Upside-Down Catfish.
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Variatus Platy
The Variatus Platy is not found commonly in freshwater aquarium fish stores. Find out why they are more rare than others to find and see a picture of the unique Variatus Platy freshwater fish.
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White Cloud Mountain Minnow
The White Cloud Mountain Minnow is ideal for the neophyte freshwater fish hobbyist. Learn about and see a picture of the peaceful and undemanding White Cloud Mountain Minnow.
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