UNDERGROUNDAQUARIUM

Species Database

Freshwater Species

256 aquarium species and varieties with real care data. Search by name, scientific name, or trade code (try “L046”), or filter by group.

256 species

Tetras & Characins

Beckford's Pencilfish

Nannostomus beckfordi

1.5" · 10 gal · 72–80°F

Black Neon Tetra

Hyphessobrycon herbertaxelrodi

1.6" · 15 gal · 73–81°F

Black Phantom Tetra

Hyphessobrycon megalopterus

1.8" · 20 gal · 72–82°F

Black Skirt Tetra

Gymnocorymbus ternetzi

2.2" · 20 gal · 70–80°F

Bleeding Heart Tetra

Hyphessobrycon erythrostigma

2.5" · 30 gal · 72–82°F

Bloodfin Tetra

Aphyocharax anisitsi

2" · 20 gal · 64–82°F

Blue Tetra

Boehlkea fredcochui

2" · 20 gal · 72–81°F

Buenos Aires Tetra

Hyphessobrycon anisitsi

2.8" · 30 gal · 64–82°F

Cardinal Tetra

Paracheirodon axelrodi

2" · 15 gal · 73–82°F

Colombian Tetra

Hyphessobrycon columbianus

2.5" · 25 gal · 72–80°F

Congo Tetra

Phenacogrammus interruptus

3.2" · 30 gal · 73–82°F

Diamond Tetra

Moenkhausia pittieri

2.4" · 20 gal · 72–82°F

Dwarf Pencilfish

Nannostomus marginatus

1.4" · 10 gal · 72–80°F

Ember Tetra

Hyphessobrycon amandae

0.8" · 10 gal · 73–82°F

Emperor Tetra

Nematobrycon palmeri

2" · 20 gal · 73–81°F

Flame Tetra

Hyphessobrycon flammeus

1.6" · 15 gal · 72–82°F

Glowlight Tetra

Hemigrammus erythrozonus

1.5" · 15 gal · 74–82°F

Green Neon Tetra

Paracheirodon simulans

1" · 10 gal · 75–84°F

Head and Tail Light Tetra

Hemigrammus ocellifer

1.8" · 15 gal · 73–82°F

Lemon Tetra

Hyphessobrycon pulchripinnis

2" · 15 gal · 72–81°F

Marbled Hatchetfish

Carnegiella strigata

1.4" · 15 gal · 75–82°F

Neon Tetra

Paracheirodon innesi

1.5" · 10 gal · 70–81°F

Penguin Tetra

Thayeria boehlkei

2" · 20 gal · 72–82°F

Pristella Tetra

Pristella maxillaris

1.8" · 15 gal · 73–82°F

Red Phantom Tetra

Hyphessobrycon sweglesi

1.6" · 20 gal · 71–79°F

Rosy Tetra

Hyphessobrycon rosaceus

1.8" · 20 gal · 73–82°F

Ruby Tetra

Axelrodia riesei

0.8" · 10 gal · 74–82°F

Rummy-nose Tetra

Hemigrammus rhodostomus

2" · 20 gal · 75–82°F

Serpae Tetra

Hyphessobrycon eques

1.8" · 20 gal · 72–81°F

Silver Dollar

Metynnis argenteus

6" · 75 gal · 75–82°F

Silver Hatchetfish

Gasteropelecus sternicla

2.5" · 20 gal · 73–81°F

Splash Tetra

Copella arnoldi

2.8" · 20 gal · 73–82°F

Three-lined Pencilfish

Nannostomus trifasciatus

2" · 15 gal · 73–82°F

X-ray Tetra

Pristella maxillaris

1.8" · 15 gal · 72–82°F

Rasboras & Small Cyprinids

Danios

Barbs

Livebearers

Gouramis & Bettas

Corydoras & Relatives

Other Catfish

Plecos (L-number Catfish)

Loaches

Cichlids - New World

Cichlids - African Rift Lake

Cichlids - West African

Rainbowfish

Killifish

Oddballs & Specialty

African Butterfly Fish

Pantodon buchholzi

4" · 30 gal · 73–86°F

African Dwarf Frog

Hymenochirus boettgeri

1.6" · 10 gal · 72–80°F

Bala Shark

Balantiocheilos melanopterus

14" · 150 gal · 72–82°F

Kept but not recommended

Black Ghost Knifefish

Apteronotus albifrons

18" · 100 gal · 73–82°F

Advanced

Chinese Algae Eater

Gyrinocheilus aymonieri

10" · 55 gal · 72–82°F

Kept but not recommended

Clown Knifefish

Chitala ornata

36" · 300 gal · 75–82°F

Advanced

Elephant Nose Fish

Gnathonemus petersii

9" · 50 gal · 73–82°F

Advanced

Fahaka Puffer

Tetraodon lineatus

17" · 120 gal · 75–82°F

Advanced

Figure-8 Puffer

Dichotomyctere ocellatus

3" · 20 gal · 74–82°F

Fire Eel

Mastacembelus erythrotaenia

24" · 120 gal · 75–82°F

Advanced

Flying Fox

Epalzeorhynchos kalopterus

5.5" · 30 gal · 73–81°F

Freshwater Stingray

Potamotrygon motoro

18" · 180 gal · 75–82°F

Expert

Green Spotted Puffer

Dichotomyctere nigroviridis

6" · 30 gal · 74–82°F

Advanced

Iridescent Shark

Pangasianodon hypophthalmus

39" · 300 gal · 72–82°F

Kept but not recommended

Mbu Puffer

Tetraodon mbu

26" · 500 gal · 75–82°F

Expert

Pea Puffer

Carinotetraodon travancoricus

1.4" · 10 gal · 72–82°F

Peacock Eel

Macrognathus siamensis

9" · 35 gal · 73–82°F

Rainbow Shark

Epalzeorhynchos frenatum

6" · 50 gal · 72–79°F

Red Tail Shark

Epalzeorhynchos bicolor

6" · 55 gal · 72–79°F

Ropefish

Erpetoichthys calabaricus

15" · 50 gal · 72–82°F

Scarlet Badis

Dario dario

0.8" · 10 gal · 71–79°F

Senegal Bichir

Polypterus senegalus

12" · 55 gal · 72–82°F

Siamese Algae Eater

Crossocheilus oblongus

6" · 30 gal · 75–82°F

Silver Arowana

Osteoglossum bicirrhosum

36" · 250 gal · 75–82°F

Expert

Tire Track Eel

Mastacembelus favus

20" · 75 gal · 73–82°F

Advanced

Goldfish & Coldwater

Shrimp

Snails

Crayfish

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