Aquarium Fish Database

Explore freshwater aquarium fish by care level, size, temperament, swimming zone, water parameters, and compatibility.

Beginner – Intermediate

Barred Rainbowfish

Chilatherina fasciata

Adult size
≤ 4.7" (≤ 12 cm)
Aquarium size
53 US gal (200 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
82–90°F (28–32°C)
Intermediate

Batman Betta

Betta persephone

Adult size
≤ 1.4" (≤ 3.5 cm)
Aquarium size
5 US gal (20 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length
Temperament
Peaceful
Temp
72–82°F (22–28°C)
Beginner – Intermediate

Bela Adormecida Tetra

Moenkhausia bellasomniosa

Adult size
≤ 2.4" (≤ 6 cm)
Temperament
Peaceful
Zone
Middle swimmer
Temp
75–82°F (24–28°C)
Beginner – Intermediate

Bengal Danio

Devario devario

Adult size
≤ 3.1" (≤ 8 cm)
Aquarium size
64 US gal (243 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
Temperament
Peaceful
Zone
Top swimmer
Temp
59–79°F (15–26°C)
Intermediate

Bengal Loach

Botia dario

Adult size
≤ 5.9" (≤ 15 cm)
Aquarium size
64 US gal (243 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
Temperament
Peaceful
Zone
Bottom dweller
Temp
73–81°F (23–27°C)
Intermediate

Bereme Creek Goby

Sicyopus beremeensis

Adult size
≤ 2.4" (≤ 6 cm)
Temperament
Peaceful
Zone
Bottom dweller
Temp
72–79°F (22–26°C)
Intermediate

Bintan Licorice Gourami

Parosphromenus bintan

Adult size
≤ 1.2" (≤ 3 cm)
Aquarium size
5 US gal (20 L) or larger / ≥ 15.7" (≥ 40 cm) minimum length
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
72–82°F (22–28°C)
Beginner – Intermediate

Bird Song Goby

Stiphodon surrufus

Adult size
≤ 0.8" (≤ 2 cm)
Aquarium size
14 US gal (54 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
Temperament
Peaceful
Zone
Bottom to middle swimmer
Temp
72–82°F (22–28°C)
Intermediate

Black Banded Leporinus

Leporinus fasciatus

Adult size
≤ 11.8" (≤ 30 cm)
Aquarium size
200 US gal (756 L) or larger / ≥ 82.7" (≥ 210 cm) minimum length
Temperament
Peaceful
Zone
Middle swimmer
Temp
72–81°F (22–27°C)
Beginner – Intermediate

Black Banded Rainbowfish

Melanotaenia nigrans

Adult size
≤ 3.9" (≤ 10 cm)
Aquarium size
26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
73–82°F (23–28°C)
Beginner – Intermediate

Black Barred Danio

Danio absconditus

Adult size
≤ 3.1" (≤ 8 cm)
Aquarium size
32 US gal (120 L) or larger
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
63–79°F (17–26°C)
Beginner – Intermediate

Black Chin Tetra

Piabucus melanostoma

Adult size
≤ 4.7" (≤ 12 cm)
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
72–81°F (22–27°C)
Advanced

Black Darter Tetra

Poecilocharax weitzmani

Adult size
≤ 2" (≤ 5 cm)
Aquarium size
15 US gal (57 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
73–81°F (23–27°C)
Beginner – Intermediate

Black Diamond Corydoras CW49

Corydoras sp.

Adult size
≤ 2.4" (≤ 6 cm)
Temperament
Peaceful
Zone
Bottom dweller
Temp
72–81°F (22–27°C)
Intermediate – Advanced

Black Ghost Knifefish

Apteronotus albifrons

Adult size
≤ 19.7" (≤ 50 cm)
Aquarium size
119 US gal (450 L) or larger / ≥ 70.9" (≥ 180 cm) minimum length
Temperament
Peaceful
Zone
Bottom dweller
Temp
73–82°F (23–28°C)
Beginner – Intermediate

Black Heart Tetra

Hyphessobrycon copelandi

Adult size
≤ 2" (≤ 5 cm)
Aquarium size
13 US gal (50 L) or larger
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
75–82°F (24–28°C)
Beginner – Intermediate

Black Ink Barb

Barbodes bunau

Adult size
≤ 2.4" (≤ 6 cm)
Aquarium size
21 US gal (80 L) or larger
Temperament
Peaceful
Zone
Middle swimmer
Temp
75–82°F (24–28°C)
Beginner – Intermediate

Black Line Tetra

Hyphessobrycon scholzei

Adult size
≤ 2" (≤ 5 cm)
Aquarium size
21 US gal (80 L) or larger
Temperament
Peaceful
Zone
Middle swimmer
Temp
72–81°F (22–27°C)
Beginner – Intermediate

Black Neon Tetra

Hyphessobrycon herbertaxelrodi

Adult size
≤ 1.6" (≤ 4 cm)
Aquarium size
21 US gal (80 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
68–79°F (20–26°C)
Beginner – Intermediate

Black Phantom Tetra

Hyphessobrycon megalopterus

Adult size
≤ 1.4" (≤ 3.5 cm)
Aquarium size
19 US gal (72 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
Temperament
Peaceful
Zone
Middle swimmer
Temp
72–81°F (22–27°C)
Beginner

Black Ruby Barb

Pethia nigrofasciata

Adult size
≤ 2" (≤ 5 cm)
Aquarium size
19 US gal (72 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
Temperament
Peaceful
Zone
Middle swimmer
Temp
72–82°F (22–28°C)
Intermediate – Advanced

Black Sharkminnow

Labeo chrysophekadion

Adult size
≤ 35.4" (≤ 90 cm)
Aquarium size
660 US gal (2500 L) or larger / ≥ 118.1" (≥ 300 cm) minimum length
Temperament
Aggressive
Zone
Bottom to middle swimmer
Temp
68–79°F (20–26°C)
Intermediate – Advanced

Black Stripe Dwarf Cichlid

Taeniacara candidi

Adult size
≤ 2.8" (≤ 7 cm)
Aquarium size
14 US gal (53 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length
Temperament
Semi-Aggressive
Zone
Middle swimmer
Temp
77–82°F (25–28°C)
Intermediate – Advanced

Black Toraja Goby

Mugilogobius hitam

Adult size
≤ 2" (≤ 5 cm)
Temperament
Semi-Aggressive
Zone
Bottom dweller
Temp
79–86°F (26–30°C)
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