Peaceful Community Fish
A community tank works when nobody in it is a threat to anybody else. These species are rated peaceful: they do not nip, do not hunt, and share space with similar-sized fish. Match them on temperature and water hardness next — that is the second half of compatibility.
120 species · ordered by how many Shoal & Stem keepers have them · every card links to a full care guide
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Pygmy Corydoras
Corydoras pygmaeus
10 gal min · 1" adult · Peaceful
Celestial Pearl Danio
Danio margaritatus
10 gal min · 1" adult · Peaceful
Guppy
Poecilia reticulata
10 gal min · 2" adult · Peaceful
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Julii Corydoras
Corydoras julii
15 gal min · 2.5" adult · Peaceful
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Panda Corydoras
Corydoras panda
15 gal min · 2" adult · Peaceful
Fancy Guppy
Poecilia reticulata
10 gal min · 2" adult · Peaceful
Honey Gourami
Trichogaster chuna
10 gal min · 2" adult · Peaceful
Cherry Barb
Puntius titteya
15 gal min · 2" adult · Peaceful
Kuhli Loach
Pangio kuhlii
20 gal min · 4" adult · Peaceful
Black Neon Tetra
Hyphessobrycon herbertaxelrodi
10 gal min · 1.5" adult · Peaceful
Endler's Livebearer
Poecilia wingei
10 gal min · 1.5" adult · Peaceful
Harlequin Rasbora
Trigonostigma heteromorpha
10 gal min · 2" adult · Peaceful
Peaceful Betta
Betta imbellis
10 gal min · 2.5" adult · Peaceful
Platy
Xiphophorus maculatus
10 gal min · 2.5" adult · Peaceful
Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Bronze Corydoras
Corydoras aeneus
20 gal min · 2.75" adult · Peaceful
Peppered Corydoras
Corydoras paleatus
20 gal min · 2.75" adult · Peaceful
White Cloud Mountain Minnow
Tanichthys albonubes
10 gal min · 1.5" adult · Peaceful
Albino Corydoras
Corydoras aeneus
15 gal min · 2.5" adult · Peaceful
Clown Pleco
Panaque maccus
20 gal min · 3.5" adult · Peaceful
False Julii Corydoras
Corydoras trilineatus
15 gal min · 2.5" adult · Peaceful
Bolivian Ram
Mikrogeophagus altispinosus
20 gal min · 3.5" adult · Peaceful
Cardinal Tetra
Paracheirodon axelrodi
15 gal min · 2" adult · Peaceful
Clown Killifish
Epiplatys annulatus
5 gal min · 1.5" adult · Peaceful
Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Green Neon Tetra
Paracheirodon simulans
10 gal min · 1" adult · Peaceful
Hillstream Loach
Sewellia lineolata
20 gal min · 2.5" adult · Peaceful
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Salt & Pepper Corydoras
Corydoras habrosus
10 gal min · 1.5" adult · Peaceful
Swordtail
Xiphophorus hellerii
20 gal min · 4" adult · Peaceful
Zebra Danio
Danio rerio
10 gal min · 2" adult · Peaceful
Albino Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Chili Rasbora
Boraras brigittae
5 gal min · 0.8" adult · Peaceful
German Blue Ram
Mikrogeophagus ramirezi
20 gal min · 3" adult · Peaceful
Green Corydoras
Corydoras aeneus
15 gal min · 2.5" adult · Peaceful
Kerri Tetra
Inpaichthys kerri
10 gal min · 1.2" adult · Peaceful
Molly
Poecilia sphenops
15 gal min · 3" adult · Peaceful
Pearl Gourami
Trichopodus leerii
30 gal min · 5" adult · Peaceful
Cobra Guppy
Poecilia reticulata
10 gal min · 2" adult · Peaceful
Common Goldfish
Carassius auratus
50 gal min · 12" adult · Peaceful
Common Pleco
Hypostomus plecostomus
100 gal min · 18" adult · Peaceful
Dalmatian Molly
Poecilia sphenops
20 gal min · 3" adult · Peaceful
Emerald Corydoras
Brochis splendens
20 gal min · 3" adult · Peaceful
Glowlight Tetra
Hemigrammus erythrozonus
10 gal min · 1.5" adult · Peaceful
Gold Barb
Barbodes semifasciolatus
20 gal min · 3" adult · Peaceful
Gold Dust Molly
Poecilia sphenops
20 gal min · 3" adult · Peaceful
Lambchop Rasbora
Trigonostigma espei
10 gal min · 1.75" adult · Peaceful
Lemon Tetra
Hyphessobrycon pulchripinnis
10 gal min · 1.5" adult · Peaceful
Red Rainbowfish
Glossolepis incisus
40 gal min · 5" adult · Peaceful
Red Swordtail
Xiphophorus hellerii
20 gal min · 4.5" adult · Peaceful
Rubber Lip Pleco
Chaetostoma milesi
25 gal min · 5" adult · Peaceful
Sparkling Gourami
Trichopsis pumila
10 gal min · 1.5" adult · Peaceful
Sterbai Corydoras
Corydoras sterbai
20 gal min · 2.5" adult · Peaceful
Sunset Honey Gourami
Trichogaster chuna
10 gal min · 2" adult · Peaceful
Venezuelan Corydoras
Corydoras venezuelanus
15 gal min · 2.5" adult · Peaceful
X-Ray Tetra
Pristella maxillaris
15 gal min · 1.75" adult · Peaceful
Banded Rainbowfish
Melanotaenia trifasciata
40 gal min · 5" adult · Peaceful
Black Kuhli Loach
Pangio oblonga
20 gal min · 4" adult · Peaceful
Black Molly
Poecilia sphenops
20 gal min · 3" adult · Peaceful
Black Moor Goldfish
Carassius auratus
20 gal min · 7" adult · Peaceful
Black Phantom Tetra
Megalamphodus megalopterus
15 gal min · 1.75" adult · Peaceful
Bloodfin Tetra
Aphyocharax anisitsi
15 gal min · 2" adult · Peaceful
Boesemani Rainbowfish
Melanotaenia boesemani
30 gal min · 4.5" adult · Peaceful
Clown Loach
Chromobotia macracanthus
75 gal min · 12" adult · Peaceful
Comet Goldfish
Carassius auratus
40 gal min · 12" adult · Peaceful
Denison Barb
Sahyadria denisonii
55 gal min · 6" adult · Peaceful
Dwarf Chain Loach
Ambastaia sidthimunki
15 gal min · 2" adult · Peaceful
Dwarf Neon Rainbowfish
Melanotaenia praecox
15 gal min · 2.5" adult · Peaceful
Eastern Rainbowfish
Melanotaenia splendida
30 gal min · 4.5" adult · Peaceful
Emerald Eye Rasbora
Brevibora dorsiocellata
10 gal min · 1.5" adult · Peaceful
Emperor Tetra
Nematobrycon palmeri
15 gal min · 2" adult · Peaceful
Exclamation Point Rasbora
Boraras urophthalmoides
5 gal min · 0.8" adult · Peaceful
Forktail Rainbowfish
Pseudomugil furcatus
10 gal min · 2" adult · Peaceful
Glass Catfish
Kryptopterus vitreolus
30 gal min · 4" adult · Peaceful
GloFish Danio
Danio rerio
10 gal min · 2" adult · Peaceful
GloFish Tetra
Gymnocorymbus ternetzi
15 gal min · 2" adult · Peaceful
Glowlight Rasbora
Trigonostigma hengeli
10 gal min · 1.2" adult · Peaceful
Gold Honey Gourami
Trichogaster chuna
10 gal min · 2" adult · Peaceful
Hastatus Corydoras
Corydoras hastatus
10 gal min · 1" adult · Peaceful
Keyhole Cichlid
Cleithracara maronii
20 gal min · 3.5" adult · Peaceful
L066 King Tiger Pleco
Hypancistrus sp. L066
20 gal min · 3.5" adult · Peaceful
Least Killifish
Heterandria formosa
5 gal min · 1.5" adult · Peaceful
Mandarin Dragonet
Synchiropus splendidus
30 gal min · 3" adult · Peaceful
Mickey Mouse Platy
Xiphophorus maculatus
10 gal min · 2.5" adult · Peaceful
Neon Blue Dwarf Gourami
Trichogaster lalius
10 gal min · 3.5" adult · Peaceful
Neon Rasbora
Sundadanio axelrodi
10 gal min · 1.5" adult · Peaceful
Norman's Lampeye
Poropanchax normani
10 gal min · 1.5" adult · Peaceful
Oranda Goldfish
Carassius auratus
20 gal min · 8" adult · Peaceful
Orange Molly
Poecilia sphenops
20 gal min · 3" adult · Peaceful
Ornate Tetra
Hyphessobrycon bentosi
10 gal min · 1.5" adult · Peaceful
Panda Garra
Garra flavatra
30 gal min · 3.5" adult · Peaceful
Pineapple Swordtail
Xiphophorus hellerii
20 gal min · 4.5" adult · Peaceful
Red Eye Tetra
Moenkhausia sanctaefilomenae
20 gal min · 2.2" adult · Peaceful
Red Lizard Catfish
Rineloricaria sp. L010a
30 gal min · 5" adult · Peaceful
Ricefish
Oryzias woworae
10 gal min · 1.5" adult · Peaceful
Ruby Tetra
Axelrodia riesei
5 gal min · 0.8" adult · Peaceful
Rummy Nose Rasbora
Sawbwa resplendens
10 gal min · 1" adult · Peaceful
Skunk Corydoras
Corydoras arcuatus
15 gal min · 2.5" adult · Peaceful
Snowball Pleco
Hypancistrus inspector
20 gal min · 3.5" adult · Peaceful
Spotted Danio
Danio nigrofasciatus
10 gal min · 1.8" adult · Peaceful
Stiphodon Goby
Stiphodon ornatus
15 gal min · 2" adult · Peaceful
Strawberry Rasbora
Boraras naevus
5 gal min · 0.7" adult · Peaceful
Threadfin Rainbowfish
Iriatherina werneri
10 gal min · 1.5" adult · Peaceful
Turquoise Rainbowfish
Melanotaenia lacustris
30 gal min · 4.5" adult · Peaceful
Tuxedo Guppy
Poecilia reticulata
10 gal min · 2" adult · Peaceful
Tuxedo Swordtail
Xiphophorus hellerii
20 gal min · 4.5" adult · Peaceful
Zebra Pleco
Hypancistrus zebra
30 gal min · 3.5" adult · Peaceful
Adolfo's Corydoras
Corydoras adolfoi
15 gal min · 2.5" adult · Peaceful
Adonis Pleco
Acanthicus adonis
150 gal min · 24" adult · Peaceful
African Glass Catfish
Pareutropius debauwi
20 gal min · 3.5" adult · Peaceful
Agassiz's Corydoras
Corydoras agassizii
20 gal min · 1.5" adult · Peaceful
Albino Longfin Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Albino Pygmy Corydoras
Corydoras pygmaeus
10 gal min · 1" adult · Peaceful
Amazon Leaf Fish
Monocirrhus polyacanthus
20 gal min · 3.5" adult · Peaceful
Amazon Molly
Poecilia formosa
10 gal min · 2.5" adult · Peaceful
Amazon Sailfin Catfish
Pterygoplichthys pardalis
125 gal min · 19" adult · Peaceful
Ambiacus Corydoras
Corydoras ambiacus
15 gal min · 2" adult · Peaceful
Not sure your combination fits?
Put your tank size and stock into the calculator — it checks bioload, schooling numbers and compatibility together.