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The Living Encyclopedia
Explore our comprehensive database of reptiles, amphibians, fish, and invertebrates. Discover detailed care guides, morph varieties, and community setups.
B
fish
Beckford's Pencilfish
Nannostomus beckfordi
Beckford's Pencilfish (Nannostomus beckfordi)
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C
fish
Coral Red Pencilfish
Nannostomus mortenthaleri
Coral Red Pencilfish (Nannostomus mortenthaleri)
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Dwarf Pencilfish
Nannostomus marginatus
Nannostomus marginatus, commonly known as the dwarf pencilfish, is a freshwater species of fish belonging to the genus Nannostomus in the characin family Lebiasinidae.
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Three-Lined Pencilfish
Nannostomus trifasciatus
Nannostomus trifasciatus, commonly known as the three-lined or three-stripe pencilfish, is a freshwater species of fish belonging to the characin family Lebiasinidae. They are popular in the aquarium trade due to their small size, beautiful color pattern, and relative hardiness.
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O
fish
One-Lined Pencilfish
Nannostomus unifasciatus
One-Lined Pencilfish (Nannostomus unifasciatus)
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H
fish
Harrison's Pencilfish
Nannostomus harrisoni
Nannostomus harrisoni, is a species of pencil fish.
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Espei Pencilfish
Nannostomus espei
Nannostomus espei, commonly known as Espe's pencilfish or barred pencilfish, is a freshwater species of fish belonging to the characin family Lebiasinidae.
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R
fish
Red Arc Pencilfish
Nannostomus digrammus
Nannostomus digrammus, commonly known as the twostripe pencilfish, is a freshwater species of fish belonging to the characin family Lebiasinidae.
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fish
Colombian Tetra
Hyphessobrycon columbianus
Hyphessobrycon columbianus, the Colombian tetra or blue-red Colombian tetra, is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. It is native to the Acandi River near Acandí) in northwestern Colombia. The Colombian tetra's habitat tends to be slow-flowing creeks and tributaries.
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Rosy Tetra
Hyphessobrycon rosaceus
The rosy tetra is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. This fish is found in northern South America. It is popular in the aquarium trade.
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Flame Tetra
Hyphessobrycon flammeus
The flame tetra, also known as the red tetra or Rio tetra, is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. This fish was first introduced as aquarium fish in 1920 by C. Bruening, Hamburg, Germany, and formally described in 1924 by Dr. George S. Myers. Today large numbers are bred in captivity and it is common in the aquarium trade, but the remaining wild population in Southeast Brazil is highly threatened.
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K
fish
Kitty Tetra
Hyphessobrycon heliacus
Kitty Tetra (Hyphessobrycon heliacus)
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L
fish
Lesser Bleeding Heart Tetra
Hyphessobrycon socolofi
Lesser Bleeding Heart Tetra (Hyphessobrycon socolofi)
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Roberts' Tetra
Hyphessobrycon bentosi
Megalamphodus bentosi, the Bentos tetra, ornate tetra or candy cane tetra, is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American tetras. This species is found in sluggish tributaries of the Amazon Basin in Brazil and Peru. Occasionally, it makes its way into the aquarium trade. It has often been confused with the rosy tetra.
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Splash Tetra
Copella arnoldi
Copella arnoldi, commonly known as the splash tetra or the splashing tetra, is a species of tropical freshwater fish belonging to the family Lebiasinidae. It is native to South America, and has been introduced to the island of Trinidad.
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Blind Cave Tetra
Astyanax mexicanus
The Mexican tetra, also known as the blind cave fish, blind cave characin or the blind cave tetra, is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. This fish is found in the lower Rio Grande, and the Nueces and Pecos Rivers in Texas, into the Central Plateau and eastern states of Mexico.
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B
fish
Bloodfin Tetra
Aphyocharax anisitsi
The bloodfin tetra is a species of freshwater ray-finned fish, a characin, belonging to the family Characidae. This fish is found in southern central South America.
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G
fish
Green Fire Tetra
Aphyocharax rathbuni
Green Fire Tetra (Aphyocharax rathbuni)
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Blue Tetra
Boehlkea fredcochui
Boehlkea fredcochui, also known as the Cochu's blue tetra, is a species of characin. Its natural range is in the Amazon Basin. It is commonly kept as an aquarium fish.
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Silvertip Tetra
Hasemania nana
The silvertip tetra is a species of ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. This species is an omnivore which is restricted to streams and creeks in the São Francisco basin in Brazil, but is frequently kept in aquariums.
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