Shoal & Stem

Species Catalogue

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

fish
Eeasy

Red-Tailed Rasbora

Rasbora borapetensis

fishfreshwater
2″·20+ gal·group 6+·peaceful
fish
Eeasy

Redbreast Acara

Laetacara dorsigera

fishfreshwater
2.5″·20+ gal·peaceful
fish
Eeasy

Redline Dwarf Rasbora

Microrasbora rubescens

fishfreshwater
1″·10+ gal·group 6+·peaceful
fish
Eeasy

Redline Rasbora

Rasbora pauciperforata

fishfreshwater
1.2″·10+ gal·group 6+·peaceful
fish
Mmedium

Redtail Botia

Yasuhikotakia modesta

fishfreshwater
5″·75+ gal·group 3+·semi-aggr.
fish
Xexpert

Regal Angelfish

Pygoplites diacanthus

fishsaltwater
10″·100+ gal·semi-aggr.
fish
beginner

Reticulatus Corydoras

Corydoras reticulatus

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

Ricefish

Oryzias woworae

fishfreshwater
1.5″·10+ gal·group 6+·peaceful
fish
intermediate

Rope Fish

Erpetoichthys calabaricus

fishfreshwater
15″·55+ gal·peaceful
fish
intermediate

Rosetail Betta

Betta splendens 'Rosetail'

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

Rosy Barb

Pethia conchonius

fishfreshwater
3.5″·25+ gal·group 6+·semi-aggr.
fish
beginner

Rosy Loach

Petruichthys sp. rosy

fishfreshwater
1.2″·10+ gal·group 6+·peaceful
fish
beginner

Rosy Tetra

Hyphessobrycon rosaceus

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

Roundtail Paradisefish

Macropodus ocellatus

fishfreshwater
2.5″·10+ gal·semi-aggr.
fish
beginner

Royal Gramma

Gramma loreto

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

Royal Pleco

Panaque nigrolineatus

fishfreshwater
17″·120+ gal·peaceful
fish
beginner

Rubber Lip Pleco

Chaetostoma milesi

fishfreshwater
5″·25+ gal·peaceful
fish
intermediate

Ruby Tetra

Axelrodia riesei

fishfreshwater
0.8″·5+ gal·group 8+·peaceful
fish
intermediate

Rummy Nose Rasbora

Sawbwa resplendens

fishfreshwater
1″·10+ gal·group 8+·peaceful
fish
intermediate

Rummy Nose Tetra

Hemigrammus rhodostomus

fishfreshwater
2″·15+ gal·group 8+·peaceful
fish
beginner

Ryukin Goldfish

Carassius auratus

fishfreshwater
8″·20+ gal·peaceful
fish
intermediate

Saddleback Clownfish

Amphiprion polymnus

fishsaltwater
4.5″·30+ gal·semi-aggr.
fish
intermediate

Saddled Bichir

Polypterus endlicheri

fishfreshwater
30″·150+ gal·semi-aggr.
fish
beginner

Sailfin Molly

Poecilia latipinna

fishfreshwater
4″·30+ gal·group 3+·peaceful
fish
intermediate

Sailfin Pleco

Pterygoplichthys gibbiceps

fishfreshwater
24″·150+ gal·peaceful
fish
intermediate

Sailfin Tang

Zebrasoma veliferum

fishsaltwater
15″·100+ gal·semi-aggr.
Salt & Pepper Corydorasbeginner

Salt & Pepper Corydoras

Corydoras habrosus

fishfreshwater
1.5″·10+ gal·group 6+·peaceful
fish
beginner

Salt & Pepper Platy

Xiphophorus maculatus

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

Salvin's Cichlid

Cichlasoma salvini

fishfreshwater
8″·55+ gal·aggressive
fish
advanced

Samurai Gourami

Sphaerichthys vaillanti

fishfreshwater
2″·15+ gal·peaceful
fish
intermediate

Satanoperca Eartheater

Satanoperca leucosticta

fishfreshwater
8″·55+ gal·group 4+·peaceful
fish
intermediate

Scarlet Badis

Dario dario

fishfreshwater
1″·10+ gal·semi-aggr.
fish
beginner

Schwartzi Corydoras

Corydoras schwartzi

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

Scissortail Dartfish

Ptereleotris evides

fishsaltwater
4″·30+ gal·group 2+·peaceful
fish
beginner

Scissortail Rasbora

Rasbora trilineata

fishfreshwater
5″·30+ gal·group 8+·peaceful
fish
beginner

Scopas Tang

Zebrasoma scopas

fishsaltwater
8″·75+ gal·semi-aggr.