Jaintia Danio
Danio jaintianensis
- Adult size
- ≤ 2" (≤ 5 cm)
- Aquarium size
- 21 US gal (80 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 36–73°F (2–23°C)
Aquarium Fish Database
Explore freshwater aquarium fish by care level, size, temperament, swimming zone, water parameters, and compatibility.
Javan Red Lipstick Goby
Sicyopus rubicundus
- Adult size
- ≤ 2.4" (≤ 6 cm)
- Aquarium size
- 30 US gal (114 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 72–77°F (22–25°C)
Jellybean Tetra
Ladigesia roloffi
- Adult size
- ≤ 1.2" (≤ 3 cm)
- Aquarium size
- 15 US gal (55 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 72–79°F (22–26°C)
Jewel Cichlid
Rubricatochromis bimaculatus
- Adult size
- ≤ 5.9" (≤ 15 cm)
- Aquarium size
- 66 US gal (250 L) or larger / ≥ 39.4" (≥ 100 cm) minimum length
- Temperament
- Semi-Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 72–81°F (22–27°C)
Jeweled Splitfin
Xenotoca variata
- Adult size
- ≤ 2.8" (≤ 7 cm)
- Aquarium size
- 40 US gal (150 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 68–81°F (20–27°C)
Jiangxi Golden Loach
Parabotia kiangsiensis
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 68–75°F (20–24°C)
Junior Tetra
Hyphessobrycon robustulus
- Adult size
- ≤ 1.8" (≤ 4.5 cm)
- Aquarium size
- 13 US gal (50 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 73–79°F (23–26°C)
Kamaka Rainbowfish
Melanotaenia kamaka
- Adult size
- ≤ 2.8" (≤ 7 cm)
- Aquarium size
- 32 US gal (120 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 72–81°F (22–27°C)
Kane’s Corydoras
Hoplisoma kanei
- Adult size
- ≤ 2" (≤ 5 cm)
- Aquarium size
- 21 US gal (80 L) or larger / ≥ 19.7" (≥ 50 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 68–79°F (20–26°C)
Kansu Loach
Sinibotia robusta
- Adult size
- ≤ 7.1" (≤ 18 cm)
- Aquarium size
- 79 US gal (300 L) or larger / ≥ 55.1" (≥ 140 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 68–73°F (20–23°C)
Katibas Sucker Loach
Gastromyzon katibasensis
- Adult size
- ≤ 2.8" (≤ 7 cm)
- Temperament
- Peaceful
- Temp
- 68–79°F (20–26°C)
Keeled Otocinclus
Oxyropsis carinata
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Aquarium size
- 18 US gal (70 L) or larger / ≥ 27.6" (≥ 70 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 68–77°F (20–25°C)
Kelberi Peacock Bass
Cichla kelberi
- Adult size
- ≤ 19.7" (≤ 50 cm)
- Aquarium size
- 185 US gal (700 L) or larger / ≥ 118.1" (≥ 300 cm) minimum length
- Temperament
- Semi-Aggressive
- Zone
- Middle swimmer
- Temp
- 75–84°F (24–29°C)
Keyhole Cichlid
Cleithracara maronii
- Adult size
- ≤ 4.9" (≤ 12.5 cm)
- Aquarium size
- 29 US gal (110 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Temp
- 72–79°F (22–26°C)
Kitty Tetra
Hyphessobrycon loweae
- Adult size
- ≤ 1.6" (≤ 4 cm)
- Aquarium size
- 13 US gal (50 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 73–81°F (23–27°C)
Knight Goby
Stigmatogobius sadanundio
- Adult size
- ≤ 3.5" (≤ 9 cm)
- Aquarium size
- 21 US gal (80 L) or larger / ≥ 27.6" (≥ 70 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 68–79°F (20–26°C)
Kogal Blue Eyed Tetra
Moenkhausia sp.
- Adult size
- ≤ 2.4" (≤ 6 cm)
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 73–81°F (23–27°C)
Krabi Mouth Brooding Betta
Betta simplex
- Adult size
- ≤ 2" (≤ 5 cm)
- Aquarium size
- 14 US gal (54 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 72–81°F (22–27°C)
Kribensis Cichlid
Pelvicachromis pulcher
- Adult size
- ≤ 3.9" (≤ 10 cm)
- Aquarium size
- 32 US gal (120 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 73–79°F (23–26°C)
Krieg’s Mini Tetra
Serrapinnus kriegi
- Adult size
- ≤ 1" (≤ 2.5 cm)
- Aquarium size
- 53 US gal (200 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 72–79°F (22–26°C)
Lake Furnusu Rainbowfish
Melanotaenia mairasi
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Aquarium size
- 26 US gal (100 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 70–79°F (21–26°C)
Lake Inle Danio
Devario auropurpureus
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Aquarium size
- 21 US gal (80 L) or larger / ≥ 35.4" (≥ 90 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 68–73°F (20–23°C)
Lake Kurumoi Rainbowfish
Melanotaenia parva
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Aquarium size
- 53 US gal (200 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 75–82°F (24–28°C)
Lake Kutubu Rainbowfish
Melanotaenia lacustris
- Adult size
- ≤ 4.9" (≤ 12.5 cm)
- Aquarium size
- 53 US gal (200 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 70–79°F (21–26°C)
