Shoal & Stem

Species Catalogue

709 species matching your filters — care guides, community photos, water parameters, and tank-mate compatibility.

Halfmoon Bettabeginner

Halfmoon Betta

Betta splendens 'Halfmoon'

fishfreshwater
2.5″·5+ gal·semi-aggr.
fish
advanced

Achilles Tang

Acanthurus achilles

fishsaltwater
9″·100+ gal·semi-aggr.
fish
intermediate

Adolfo's Corydoras

Corydoras adolfoi

fishfreshwater
2.5″·15+ gal·group 6+·peaceful
fish
advanced

Adonis Pleco

Acanthicus adonis

fishfreshwater
24″·150+ gal·peaceful
fish
intermediate

African Butterflyfish

Pantodon buchholzi

fishfreshwater
5″·30+ gal·semi-aggr.
fish
Mmedium

African Knife Fish

Xenomystus nigri

fishfreshwater
6″·55+ gal·semi-aggr.
fish
intermediate

Agassiz's Dwarf Cichlid

Apistogramma agassizii

fishfreshwater
3″·20+ gal·group 2+·semi-aggr.
fish
intermediate

Albino Angelfish

Pterophyllum scalare

fishfreshwater
6″·30+ gal·group 2+·semi-aggr.
fish
beginner

Albino Bristlenose Pleco

Ancistrus sp.

fishfreshwater
5″·20+ gal·peaceful
fish
beginner

Albino Corydoras

Corydoras aeneus

fishfreshwater
2.5″·15+ gal·group 6+·peaceful
fish
beginner

Albino Longfin Bristlenose Pleco

Ancistrus sp.

fishfreshwater
5″·20+ gal·peaceful
fish
intermediate

Albino Oscar

Astronotus ocellatus

fishfreshwater
14″·75+ gal·semi-aggr.
fish
intermediate

Albino Rainbow Shark

Epalzeorhynchos frenatum

fishfreshwater
6″·55+ gal·semi-aggr.
fish
intermediate

Albino Tiger Barb

Puntigrus tetrazona

fishfreshwater
3″·20+ gal·group 6+·semi-aggr.
fish
advanced

Altum Angelfish

Pterophyllum altum

fishfreshwater
8″·55+ gal·group 2+·semi-aggr.
fish
beginner

Amazon Molly

Poecilia formosa

fishfreshwater
2.5″·10+ gal·group 3+·peaceful
fish
beginner

Ambiacus Corydoras

Corydoras ambiacus

fishfreshwater
2″·15+ gal·group 6+·peaceful
fish
intermediate

Angelicus Synodontis

Synodontis angelicus

fishfreshwater
10″·55+ gal·semi-aggr.
fish
Mmedium

Apistogramma Baenschi

Apistogramma baenschi

fishfreshwater
3″·20+ gal·semi-aggr.
fish
Mmedium

Apistogramma Bitaeniata

Apistogramma bitaeniata

fishfreshwater
2.5″·20+ gal·peaceful
fish
beginner

Apistogramma Borellii

Apistogramma borellii

fishfreshwater
3″·20+ gal·group 2+·semi-aggr.
fish
Mmedium

Apistogramma Iniridae

Apistogramma iniridae

fishfreshwater
2.5″·20+ gal·peaceful
fish
intermediate

Archerfish

Toxotes jaculatrix

fishbrackish
10″·55+ gal·group 3+·semi-aggr.
fish
Mmedium

Argentine Pearlfish

Austrolebias bellottii

fishfreshwater
1.5″·10+ gal·semi-aggr.
fish
intermediate

Armatus Corydoras

Corydoras armatus

fishfreshwater
2.5″·15+ gal·group 6+·peaceful
fish
Xexpert

Arowana

Osteoglossum bicirrhosum

fishfreshwater
36″·250+ gal·semi-aggr.
fish
advanced

Arrowhead Puffer

Pao suvattii

fishfreshwater
5″·40+ gal·aggressive
fish
intermediate

Asian Stone Catfish

Hara hara

fishfreshwater
1″·10+ gal·group 4+·peaceful
fish
intermediate

Atlantic Blue Tang

Acanthurus coeruleus

fishsaltwater
9″·75+ gal·semi-aggr.
fish
beginner

Australian Rainbowfish

Melanotaenia fluviatilis

fishfreshwater
4″·30+ gal·group 4+·peaceful
fish
beginner

Axelrodi Corydoras

Corydoras axelrodi

fishfreshwater
2″·15+ gal·group 6+·peaceful
fish
beginner

Azure Damsel

Chrysiptera hemicyanea

fishsaltwater
3″·30+ gal·semi-aggr.
fish
intermediate

Bala Shark

Balantiocheilos melanopterus

fishfreshwater
14″·125+ gal·group 3+·peaceful
fish
beginner

Balloon Molly

Poecilia sphenops

fishfreshwater
2.5″·20+ gal·group 3+·peaceful
fish
intermediate

Balloon Ram

Mikrogeophagus ramirezi

fishfreshwater
2″·20+ gal·group 2+·peaceful
fish
intermediate

Banded Leporinus

Leporinus fasciatus

fishfreshwater
12″·55+ gal·semi-aggr.