Fish Species Library

Browse freshwater aquarium species with detailed care guides, tank requirements, and compatibility info

Browse by Group

Guppy

Poecilia reticulata

PeacefulEasy
6.5cm / 2.5"37L min

Betta

Betta splendens

AggressiveEasy
7.5cm / 3.0"20L min

Angelfish Scalare

Pterophyllum Scalare

Semi-AggressiveModerate
15.0cm / 6.0"75L min

Rummy-Nose Tetra

Hemigrammus bleheri

PeacefulModerate
6.5cm / 2.5"75L min

Common Pleco

Hypostomus plecostomus

Semi-AggressiveAdvanced
50.0cm / 20.0"284L min

Molly

Poecilia sphenops

PeacefulEasy
10.0cm / 4.0"75L min

Swordtail

Xiphophorus hellerii

PeacefulEasy
15.0cm / 6.0"80L min

Dwarf Gourami

Trichogaster lalius

PeacefulEasy
6.0cm / 2.5"37L min

Pearl Gourami

Trichopodus leerii

PeacefulEasy
11.5cm / 4.5"75L min

Three Spot Gourami

Trichopodus trichopterus

PeacefulEasy
10.0cm / 4.0"113L min

Chocolate Gourami

Sphaerichthys osphromenoides

PeacefulEasy
5.0cm / 2.0"37L min

Kissing Gourami

Helostoma temminckii

Semi-AggressiveModerate
30.0cm / 12.0"208L min

Moonlight Gourami

Trichopodus microlepis

PeacefulEasy
15.0cm / 6.0"113L min

Black Ruby Barb

Pethia nigrofasciata

PeacefulEasy
7.0cm / 3.0"37L min

Denison Barb

Sahyadria denisonii

PeacefulModerate
15.0cm / 6.0"113L min

Gold Barb

Barbodes semifasciolatus

PeacefulEasy
6.0cm / 2.5"75L min

Rosy Barb

Pethia conchonius

PeacefulEasy
10.0cm / 4.0"75L min

Tiger Barb

Puntius tetrazona

Semi-AggressiveEasy
7.0cm / 2.8"75L min

Tinfoil Barb

Barbonymus schwanenfeldii

Semi-AggressiveAdvanced
35.0cm / 14.0"285L min

Zebra Danio

Danio rerio

PeacefulEasy
6.0cm / 2.4"75L min

Skunk Corydoras

Corydoras arcuatus

PeacefulEasy
6.0cm / 2.4"37L min

Pepper Corydoras

Corydoras paleatus

PeacefulEasy
6.0cm / 2.4"37L min

Bristlenose Pleco

Ancistrus sp.

PeacefulEasy
15.0cm / 6.0"75L min

Julii Corydoras

Corydoras julii

PeacefulEasy
6.0cm / 2.4"37L min

Three Stripe Corydoras

Trilineatus corydoras

PeacefulEasy
6.0cm / 2.4"37L min

Bronze Corydoras

Corydoras aeneus

PeacefulEasy
7.0cm / 2.8"37L min

Panda Corydoras

Corydoras panda

PeacefulEasy
4.0cm / 1.6"37L min

Bandit Corydoras

Corydoras metae

PeacefulEasy
6.0cm / 2.4"37L min

Upside Down Catfish

Synodontis nigriventris

PeacefulModerate
10.0cm / 4.0"75L min

Pictus Catfish

Pimelodus pictus

Semi-AggressiveModerate
15.0cm / 6.0"284L min

Cardinal Tetra

Paracheirodon axelrodi

PeacefulEasy
5.0cm / 2.0"75L min

Harlequin Rasbora

Trigonostigma heteromorpha

PeacefulEasy
5.0cm / 2.0"37L min

Ember Tetra

Hyphessobrycon amandae

PeacefulEasy
2.0cm / 0.8"37L min

Black Neon Tetra

Hyphessobrycon herbertaxelrodi

PeacefulEasy
4.0cm / 1.6"37L min

Serpae Tetra

Hyphessobrycon eques

Semi-AggressiveEasy
4.0cm / 1.6"37L min

Black Skirt Tetra

Gymnocorymbus ternetzi

PeacefulEasy
5.0cm / 2.0"37L min

Glowlight Tetra

Hemigrammus erythrozonus

PeacefulEasy
3.0cm / 1.2"37L min

Lemon Tetra

Hyphessobrycon pulchripinnis

PeacefulEasy
5.0cm / 2.0"37L min

Congo Tetra

Phenacogrammus interruptus

PeacefulModerate
12.0cm / 5.0"120L min

Bloodfin Tetra

Aphyocharax anisitsi

PeacefulEasy
6.0cm / 2.5"60L min

Diamond Tetra

Moenkhausia pittieri

PeacefulEasy
5.0cm / 2.0"60L min

Emperor Tetra

Nematobrycon palmeri

PeacefulEasy
5.0cm / 2.0"60L min

Buenos Aires Tetra

Hyphessobrycon anisitsi

Semi-AggressiveEasy
13.2cm / 5.2"151L min

Redeye Tetra

Moenkhausia sanctaefilomenae

PeacefulEasy
7.5cm / 3.0"37L min

Bleeding Heart Tetra

Hyphessobrycon erythrostigma

PeacefulEasy
6.0cm / 2.5"37L min

Mexican Tetra

Astyanax mexicanus

PeacefulEasy
10.0cm / 4.0"75L min

Black Phantom Tetra

Hyphessobrycon megalopterus

PeacefulEasy
5.0cm / 2.0"75L min

Silvertip Tetra

Hasemania nana

PeacefulEasy
6.0cm / 2.4"75L min

Green Neon Tetra

Paracheirodon simulans

PeacefulModerate
3.0cm / 1.2"38L min

Penguin Tetra

Thayeria boehlkei

PeacefulModerate
7.5cm / 3.0"37L min

Bucktooth Tetra

Exodon paradoxus

AggressiveAdvanced
10.0cm / 4.0"100L min

Flame Tetra

Hyphessobrycon flammeus

PeacefulModerate
5.0cm / 2.0"37L min

Rosy Tetra

Hyphessobrycon rosaceus

PeacefulEasy
5.0cm / 2.0"37L min

Kribensis

Pelvicachromis pulcher

Semi-AggressiveModerate
10.0cm / 4.0"75L min

Silver Dollar

Metynnis argenteus

PeacefulEasy
15.0cm / 6.0"150L min

Oscar

Astronotus ocellatus

AggressiveModerate
35.0cm / 14.0"190L min

Discus

Symphysodon spp.

PeacefulAdvanced
20.0cm / 8.0"190L min

Black Ghost Knifefish

Apteronotus albifrons

PeacefulAdvanced
50.0cm / 20.0"380L min

Fairy Cichlid

Neolamprologus brichardi

PeacefulModerate
10.0cm / 4.0"75L min

Australian Arowana

Scleropages jardinii

AggressiveAdvanced
90.0cm / 35.0"380L min