Aquarium Fish Database

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

Beginner – Intermediate

Bolivian Ram Cichlid

Mikrogeophagus altispinosus

Adult size
up to 8 cm
Aquarium size
120 L or larger
Temperament
Peaceful
Zone
Middle swimmer
Temp
23–25 °C
Intermediate

Bonti Rainbowfish

Telmatherina bonti

Adult size
up to 8 cm
Aquarium size
80 L or larger
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
22–24 °C
Intermediate

Bonylip Barb

Osteocheilus vittatus

Adult size
up to 32 cm
Aquarium size
300 L or larger
Temperament
Peaceful
Zone
Bottom to middle swimmer
Temp
22–26 °C
Beginner – Intermediate

Borneo Red Fin Silver Shark

Cyclocheilichthys janthochir

Adult size
up to 20 cm
Aquarium size
240 L or larger
Temperament
Peaceful
Zone
Bottom to middle swimmer
Temp
21–26 °C
Intermediate – Advanced

Borneo Redline Halfbeak

Hemirhamphodon tengah

Adult size
up to 6 cm
Aquarium size
80 L or larger
Temperament
Peaceful
Zone
Top swimmer
Temp
24–27 °C
Beginner – Intermediate

Boulenger’s Featherfin Tetra

Bryconaethiops boulengeri

Adult size
up to 25 cm
Aquarium size
300 L or larger
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
22–26 °C
Beginner – Intermediate

Brevirostris Corydoras

Corydoras brevirostris

Adult size
up to 5 cm
Aquarium size
60 L or larger
Temperament
Peaceful
Zone
Bottom dweller
Temp
20–26 °C
Intermediate

Brichard’s Slender Cichlid

Teleogramma brichardi

Adult size
up to 10 cm
Aquarium size
200 L or larger
Temperament
Semi-Aggressive
Zone
Bottom dweller
Temp
20–23 °C
Beginner – Intermediate

Bristlenose Plecostomus

Ancistrus cirrhosus

Adult size
up to 13 cm
Aquarium size
160 L or larger
Temperament
Peaceful
Zone
Bottom dweller
Temp
22–27 °C
Intermediate

Brittanichthys Axelrodi Tetra

Brittanichthys axelrodi

Adult size
up to 3 cm
Aquarium size
30 L or larger
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
24–27 °C
Beginner – Intermediate

Brittans Rasbora

Kottelatia brittan

Adult size
up to 5 cm
Aquarium size
45 L or larger
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
23–26 °C
Beginner – Intermediate

Broadstripe Shiner

Pteronotropis euryzonus

Adult size
up to 7 cm
Aquarium size
80 L or larger
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
12–17 °C
Beginner – Intermediate

Broken Line Tetra

Hemigrammus ulreyi

Adult size
up to 5 cm
Aquarium size
45 L or larger
Temperament
Peaceful
Zone
Middle to top swimmer
Temp
23–26 °C
Beginner – Intermediate

Bronze Corydoras Var Longfin

Corydoras aeneus

Adult size
up to 7 cm
Aquarium size
100 L or larger
Temperament
Peaceful
Zone
Bottom dweller
Temp
23–26 °C
Beginner – Intermediate

Brown Fork Tail Loach

Vaillantella cinnamomea

Adult size
up to 5 cm
Aquarium size
45 L or larger
Temperament
Peaceful
Zone
Bottom dweller
Temp
22–26 °C
Intermediate – Advanced

Brown Ghost Knifefish

Apteronotus leptorhynchus

Adult size
up to 20 cm
Aquarium size
240 L or larger
Temperament
Semi-Aggressive
Zone
Bottom dweller
Temp
24–28 °C
Intermediate – Advanced

Bucktooth Tetra

Exodon paradoxus

Adult size
up to 12 cm
Aquarium size
200 L or larger
Temperament
Aggressive
Zone
Middle to top swimmer
Temp
22–27 °C
Beginner

Buenos Aires Tetra

Hyphessobrycon anisitsi

Adult size
up to 7 cm
Aquarium size
120 L or larger
Temperament
Semi-Aggressive
Zone
Middle to top swimmer
Temp
17–28 °C
Intermediate – Advanced

Bumblebee Goby

Brachygobius doriae

Adult size
up to 4 cm
Aquarium size
120 L or larger
Temperament
Semi-Aggressive
Zone
Bottom to middle swimmer
Temp
22–26 °C
Intermediate – Advanced

Bumblebee Otocinclus

Rhinotocinclus isabelae

Adult size
up to 2 cm
Aquarium size
30 L or larger
Temperament
Peaceful
Zone
Bottom dweller
Temp
22–26 °C
Beginner – Intermediate

Burgess Corydoras

Corydoras burgessi

Adult size
up to 5.5 cm
Aquarium size
60 L or larger
Temperament
Peaceful
Zone
Bottom dweller
Temp
20–28 °C
Intermediate – Advanced

Burmese Spotted Snakehead

Channa ornatipinnis

Adult size
up to 25 cm
Aquarium size
300 L or larger
Temperament
Aggressive
Zone
Bottom to middle swimmer
Temp
12–25 °C
Intermediate – Advanced

Butterfly Barb

Barbus hulstaerti

Adult size
up to 3.5 cm
Aquarium size
45 L or larger
Temperament
Peaceful
Zone
Middle swimmer
Temp
16–23 °C
Intermediate – Advanced

Butterfly Peacock Bass

Cichla ocellaris

Adult size
up to 75 cm
Aquarium size
900 L or larger
Temperament
Aggressive
Zone
Middle swimmer
Temp
24–29 °C
Scroll to Top