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Freshwater Fish Directory

1,171 species

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Species profiles

1171 results

Blue Danio

Danio kerri

Care level
Intermediate
Adult size
4–5 cm
Minimum tank
72 litres
Temperature
18–26 °C

Blue Diamond Discus

Symphysodon aequifasciatus var. "Blue Diamond"

Care level
Advanced
Adult size
15–18 cm
Minimum tank
350 litres
Temperature
27–31 °C

Blue Diamond Tetra

Alestopetersius smykalai

Care level
Intermediate
Adult size
6 cm
Minimum tank
108 litres
Temperature
20–28 °C

Blue Discus

Symphysodon aequifasciatus var. "Blue"

Care level
Advanced
Adult size
12–15 cm
Minimum tank
350 litres
Temperature
28–30 °C

Blue Dolphin Cichlid

Cyrtocara moorii

Care level
Advanced
Adult size
25 cm
Minimum tank
217 litres
Temperature
25–29 °C

Blue Fin Hillstream Loach

Gastromyzon aeroides

Care level
Specialist
Adult size
4.2–6 cm
Minimum tank
60 litres
Temperature
20–25 °C

Blue Harlequin Rasbora

Trigonostigma heteromorpha var. Blue

Care level
Beginner
Adult size
4.5 cm
Minimum tank
54 litres
Temperature
21–28 °C

Blue Line Rasbora

Rasbora sarawakensis

Care level
Beginner
Adult size
5 cm
Minimum tank
87 litres
Temperature
22–26 °C

Blue Moon Danio

Devario xyrops

Care level
Specialist
Adult size
6–7.7 cm
Minimum tank
100 litres
Temperature
18–26 °C

Blue Neon Cichlid

Paracyprichromis nigripinnis

Care level
Intermediate
Adult size
11 cm
Minimum tank
243 litres
Temperature
24–27 °C

Blue Neon Goby

Stiphodon atropurpureus

Care level
Intermediate
Adult size
5 cm
Minimum tank
54 litres
Temperature
22–26 °C

Blue Panaque Plecostomus L239

Baryancistrus beggini

Care level
Advanced
Adult size
11.2–15 cm
Minimum tank
250 litres
Temperature
26–31 °C

Blue Panda Apistogramma

Apistogramma panduro

Care level
Advanced
Adult size
4–6.5 cm
Minimum tank
60 litres
Temperature
23–28 °C

Blue Purple Emperor Tetra

Inpaichthys kerri

Care level
Beginner
Adult size
3.5 cm
Minimum tank
87 litres
Temperature
24–27 °C

Blue Spotted Hill Trout

Opsarius bakeri

Care level
Advanced
Adult size
13 cm
Minimum tank
540 litres
Temperature
18–26 °C

Bluefin Notho

Nothobranchius rachovii

Care level
Intermediate
Adult size
5.5 cm
Minimum tank
40 litres
Temperature
20–24 °C

Boeseman’s Rainbowfish

Melanotaenia boesemani

Care level
Intermediate
Adult size
9–11 cm
Minimum tank
110 litres
Temperature
27–30 °C

Bolivian Ram Cichlid

Mikrogeophagus altispinosus

Care level
Beginner
Adult size
6–9 cm
Minimum tank
80 litres
Temperature
23–28 °C

Bonylip Barb

Osteochilus vittatus

Care level
Advanced
Adult size
32 cm
Minimum tank
648 litres
Temperature
22–25 °C

Bornean Red-eye Puffer

Carinotetraodon borneensis

Care level
Advanced
Adult size
4.5 cm
Minimum tank
54 litres
Temperature
20–28 °C

Borneo Betta

Betta taeniata

Care level
Intermediate
Adult size
5.5 cm
Minimum tank
54 litres
Temperature
22–27 °C

Borneo Red Fin Silver Shark

Cyclocheilichthys janthochir

Care level
Intermediate
Adult size
20 cm
Minimum tank
364 litres
Temperature
22–27 °C

Bottom Sword Guppy

Poecilia reticulata var. "Bottom Sword"

Care level
Beginner
Adult size
3–6 cm
Minimum tank
40 litres
Temperature
17–28 °C

Brevirostris Corydoras

Hoplisoma brevirostris

Care level
Intermediate
Adult size
4–5.5 cm
Minimum tank
75 litres
Temperature
22–27 °C

Brilliant Blue Discus

Symphysodon aequifasciatus var. "Brilliant Blue"

Care level
Advanced
Adult size
15–18 cm
Minimum tank
350 litres
Temperature
27–31 °C

Broad Stripe Rasbora

Rasbora dandia

Care level
Intermediate
Adult size
9.9 cm
Minimum tank
243 litres
Temperature
22–25 °C

Broken Line Tetra

Hemigrammus ulreyi

Care level
Intermediate
Adult size
5 cm
Minimum tank
87 litres
Temperature
23–27 °C

Bronze Corydoras

Osteogaster aenea

Care level
Beginner
Adult size
6–7.5 cm
Minimum tank
100 litres
Temperature
21–28 °C

Bronze Corydoras Longfin

Osteogaster aenea var. "Longfin"

Care level
Beginner
Adult size
6–7.5 cm
Minimum tank
100 litres
Temperature
21–28 °C

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