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Freshwater Fish Directory

Showing 871 of 1,171 species

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Species profiles

871 results

Mercury Discus

Symphysodon aequifasciatus var. "Mercury"

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

Metal Guppy

Poecilia reticulata var. "Metal"

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

Mexican Tetra

Astyanax mexicanus

Care level
Beginner
Adult size
9.5 cm
Minimum tank
72 litres
Temperature
20–25 °C

Miniature Pencilfish

Nannostomus anduzei

Care level
Intermediate
Adult size
1.6 cm
Minimum tank
40 litres
Temperature
22–28 °C

Mirabilis Eartheater

Geophagus mirabilis

Care level
Advanced
Adult size
14–20 cm
Minimum tank
350 litres
Temperature
24–29 °C

Molly

Poecilia sphenops

Care level
Beginner
Adult size
6–8 cm
Minimum tank
80 litres
Temperature
21–28 °C

Moonlight Gourami

Trichopodus microlepis

Care level
Beginner
Adult size
15 cm
Minimum tank
81 litres
Temperature
25–30 °C

Mosaic Guppy

Poecilia reticulata var. "Mosaic"

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

Moscow Guppy

Poecilia reticulata var. "Moscow"

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

Moustached Danio

Danio dangila

Care level
Specialist
Adult size
10–15 cm
Minimum tank
300 litres
Temperature
18–26 °C

Multispinis Peckoltia L049

Peckoltia multispinis

Care level
Intermediate
Adult size
9–12 cm
Minimum tank
90 litres
Temperature
24–29 °C

Munduruku Plecostomus L361

Hopliancistrus munduruku

Care level
Advanced
Adult size
11.2–15 cm
Minimum tank
100 litres
Temperature
25–30 °C

Murray River Rainbowfish

Melanotaenia fluviatilis

Care level
Beginner
Adult size
10 cm
Minimum tank
81 litres
Temperature
20–25 °C

Myer’s Hillstream Loach

Pseudogastromyzon myersi

Care level
Specialist
Adult size
4.9–7 cm
Minimum tank
80 litres
Temperature
18–24 °C

Napo Corydoras

Gastrodermus napoensis

Care level
Advanced
Adult size
3–4.5 cm
Minimum tank
60 litres
Temperature
22–27 °C

Narayan Barb

Pethia setnai

Care level
Beginner
Adult size
6.5 cm
Minimum tank
81 litres
Temperature
20–26 °C

Neon Blue Guppy

Poecilia reticulata var. "Neon Blue"

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

Neon Blue Rasbora

Sundadanio axelrodi

Care level
Intermediate
Adult size
2.2 cm
Minimum tank
12 litres
Temperature
23–26 °C

Neon Borneo Sucker

Gastromyzon lepidogaster

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

Neon Green Rasbora

Microdevario kubotai

Care level
Intermediate
Adult size
2 cm
Minimum tank
54 litres
Temperature
20–27 °C

Neon Tetra

Paracheirodon innesi

Care level
Beginner
Adult size
2.5–3 cm
Minimum tank
55 litres
Temperature
21–25 °C

Nijssen’s Corydoras

Gastrodermus nijsseni

Care level
Advanced
Adult size
3–4.5 cm
Minimum tank
60 litres
Temperature
22–27 °C

Niveatus Plecostomus L026

Baryancistrus niveatus

Care level
Advanced
Adult size
18.8–25 cm
Minimum tank
250 litres
Temperature
26–31 °C

Nkhomo-benga Peacock Cichlid

Aulonocara baenschi

Care level
Intermediate
Adult size
13 cm
Minimum tank
243 litres
Temperature
25–29 °C

Nocturnal Dwarf Panaque L329

Panaqolus nocturnus

Care level
Intermediate
Adult size
11.2–15 cm
Minimum tank
90 litres
Temperature
24–29 °C

Odessa Barb

Pethia padamya

Care level
Beginner
Adult size
4–4.6 cm
Minimum tank
70 litres
Temperature
16–25 °C

Oligospila Peckoltia L006

Peckoltia oligospila

Care level
Intermediate
Adult size
9–12 cm
Minimum tank
90 litres
Temperature
24–29 °C

Olive Corydoras CW019

Gastrodermus sp. CW019

Care level
Intermediate
Adult size
3.5–5 cm
Minimum tank
60 litres
Temperature
22–27 °C

One-Lined Pencilfish

Nannostomus unifasciatus

Care level
Beginner
Adult size
4 cm
Minimum tank
68 litres
Temperature
23–28 °C

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