All aquarium species: J
All species whose common name starts with J, in alphabetical order. Each card links to its care guide.
28 species
Jack Dempsey
Rocio octofasciata
Freshwater9.8 in (25 cm) · 55 gal (208 L)72–82°F (22–28°C)
Jackson's utaka
Copadichromis jacksoni
Freshwater7.1 in (18 cm) · 79 gal (300 L)75–81°F (24–27°C)
Jade betta
Betta iaspis
Freshwater0.9 in (2.4 cm) · 8 gal (30 L)75–86°F (24–30°C)
Jae barb
Enteromius jae
Freshwater1.6 in (4 cm) · 16 gal (60 L)68–77°F (20–25°C)
Jaguar catfish
Liosomadoras oncinus
Freshwater9.1 in (23 cm) · 65 gal (245 L)72–82°F (22–28°C)
Jaguar cichlid
Parachromis managuensis
Freshwater15.7 in (40 cm) · 119 gal (450 L)75–82°F (24–28°C)
Jaintia danio
Danio jaintianensis
Freshwater2 in (5 cm) · 20 gal (75 L)64–75°F (18–24°C)
Janss' pipefish
Doryrhamphus janssi
Saltwater5.5 in (14 cm) · 50 gal (190 L)72–79°F (22–26°C)
January tetra
Hemigrammus hyanuary
Freshwater1.6 in (4 cm) · 17 gal (65 L)73–81°F (23–27°C)
Japanese trapdoor snail
Cipangopaludina malleata
Freshwater2 in (5 cm) · 8 gal (30 L)64–77°F (18–25°C)
Jau catfish
Zungaro zungaro
Freshwater55.1 in (140 cm) · 793 gal (3,000 L)72–82°F (22–28°C)
Java loach
Pangio oblonga
Freshwater3.1 in (8 cm) · 25 gal (95 L)70–79°F (21–26°C)
Java spotted barb
Puntius bimaculatus
Freshwater2.8 in (7 cm) · 20 gal (75 L)72–81°F (22–27°C)
Javanese ricefish
Oryzias javanicus
Freshwater1.4 in (3.5 cm) · 11 gal (40 L)75–84°F (24–29°C)
Javari banded knifefish
Gymnotus javari
Freshwater7.9 in (20 cm) · 66 gal (250 L)75–82°F (24–28°C)
Jegu's pike cichlid
Crenicichla jegui
Freshwater9.4 in (24 cm) · 119 gal (450 L)77–84°F (25–29°C)
Jellybean tetra
Ladigesia roloffi
Freshwater1.2 in (3 cm) · 10 gal (37 L)72–81°F (22–27°C)
Jewel cichlid
Hemichromis bimaculatus
Freshwater5.9 in (15 cm) · 30 gal (115 L)72–82°F (22–28°C)
Jewel killifish
Aphyosemion exiguum
Freshwater1.6 in (4 cm) · 11 gal (40 L)68–77°F (20–25°C)
Jewel urchin
Lytechinus williamsi
Saltwater2 in (5 cm) · 11 gal (40 L)72–81°F (22–27°C)
Jeweled baril
Opsarius pulchellus
Freshwater5.1 in (13 cm) · 53 gal (200 L)72–81°F (22–27°C)
Jeweled splitfin
Xenotoca variata
Freshwater2.8 in (7 cm) · 20 gal (75 L)64–81°F (18–27°C)
Joculator angelfish
Centropyge joculator
Saltwater3.5 in (9 cm) · 70 gal (265 L)75–81°F (24–27°C)
Johanna pike cichlid
Lugubria johanna
Freshwater13.4 in (34 cm) · 185 gal (700 L)75–82°F (24–28°C)
Johanni cichlid
Melanochromis johannii
Freshwater4.7 in (12 cm) · 42 gal (160 L)73–81°F (23–27°C)
Johnston's placidochromis
Placidochromis johnstoni
Freshwater7.9 in (20 cm) · 119 gal (450 L)75–81°F (24–27°C)
Juelin's licorice gourami
Parosphromenus juelinae
Freshwater1.2 in (3 cm) · 5 gal (20 L)72–81°F (22–27°C)
Julii cory
Hoplisoma julii
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)68–79°F (20–26°C)
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