Shoal & Stem

Species Catalogue

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

fish
medium

Rainbow Emperor Tetra

Nematobrycon lacortei

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

Rainbow Shark

Epalzeorhynchos frenatum

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

Ranchu Goldfish

Carassius auratus

fishfreshwater
7″·20+ gal·peaceful
fish
medium

Red Arc Pencilfish

Nannostomus rubrocaudatus

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

Red Cap Lyretail

Aphyosemion calliurum

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

Red Hook Silver Dollar

Myloplus rubripinnis

fishfreshwater
3.5″·75+ gal·group 6+·peaceful
fish
medium

Red Hump Eartheater

Geophagus steindachneri

fishfreshwater
7″·55+ gal·group 4+·peaceful
fish
medium

Red Melon Badis

Dario hysginon

fishfreshwater
0.8″·10+ gal·peaceful
fish
medium

Red Neon Blue Eye

Pseudomugil luminatus

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

Red Oscar

Astronotus ocellatus

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

Red Zebra Cichlid

Maylandia estherae

fishfreshwater
5.5″·55+ gal·aggressive
fish
medium

Red-Bellied Piranha

Pygocentrus nattereri

fishfreshwater
13″·100+ gal·group 5+·aggressive
fish
medium

Red-Striped Killifish

Aphyosemion striatum

fishfreshwater
1.5″·10+ gal·peaceful
fish
medium

Red-Tailed Black Shark

Epalzeorhynchos bicolor

fishfreshwater
5″·55+ gal·semi-aggr.
fish
medium

Redtail Botia

Yasuhikotakia modesta

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

Rope Fish

Erpetoichthys calabaricus

fishfreshwater
15″·55+ gal·peaceful
fish
medium

Rosetail Betta

Betta splendens 'Rosetail'

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

Royal Pleco

Panaque nigrolineatus

fishfreshwater
17″·120+ gal·peaceful
fish
medium

Ruby Tetra

Axelrodia riesei

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

Rummy Nose Rasbora

Sawbwa resplendens

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

Saddleback Clownfish

Amphiprion polymnus

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

Saddled Bichir

Polypterus endlicheri

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

Sailfin Pleco

Pterygoplichthys gibbiceps

fishfreshwater
24″·150+ gal·peaceful
fish
medium

Sailfin Tang

Zebrasoma veliferum

fishsaltwater
15″·100+ gal·semi-aggr.
fish
medium

Salvin's Cichlid

Cichlasoma salvini

fishfreshwater
8″·55+ gal·aggressive
fish
medium

Sardine Cichlid

Cyprichromis leptosoma

fishfreshwater
3.5″·30+ gal·group 6+·peaceful
fish
medium

Satanoperca Eartheater

Satanoperca leucosticta

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

Scarlet Badis

Dario dario

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

Senegal Bichir

Polypterus senegalus

fishfreshwater
12″·75+ gal·semi-aggr.
fish
medium

Sharpnose Chocolate Gourami

Sphaerichthys acrostoma

fishfreshwater
1.2″·10+ gal·group 4+·peaceful
fish
medium

Silver Angelfish

Pterophyllum scalare

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

Silver Hatchetfish

Gasteropelecus sternicla

fishfreshwater
2.5″·20+ gal·group 6+·peaceful
fish
medium

Six-Barred Panchax

Epiplatys sexfasciatus

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

Skunk Botia

Yasuhikotakia morleti

fishfreshwater
5″·40+ gal·group 5+·peaceful
fish
medium

Slimy Myersi Kuhli

Pangio myersi

fishfreshwater
3.5″·20+ gal·group 3+·peaceful
fish
medium

Smokey Angelfish

Pterophyllum scalare

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