Shoal & Stem

Species Catalogue

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

fish
medium

Snowflake Moray

Echidna nebulosa

fishsaltwater
24″·55+ gal·semi-aggr.
fish
medium

South American Puffer

Colomesus asellus

fishfreshwater
3.5″·30+ gal·group 3+·semi-aggr.
fish
medium

Spilurus Cichlid

Cryptoheros spilurus

fishfreshwater
5″·40+ gal·semi-aggr.
fish
medium

Splash Tetra

Copella arnoldi

fishfreshwater
3″·20+ gal·group 4+·peaceful
fish
medium

Spotted Blue Eye Rainbowfish

Pseudomugil gertrudae

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

Spotted Checkerboard Cichlid

Dicrossus maculatus

fishfreshwater
1.5″·10+ gal·peaceful
fish
medium

Spotted Climbing Perch

Ctenopoma acutirostre

fishfreshwater
3.5″·20+ gal·peaceful
fish
medium

Spotted Hatchetfish

Gasteropelecus maculatus

fishfreshwater
1.5″·20+ gal·group 6+·peaceful
shrimp
medium

Spotted Head Pinto Shrimp

Caridina logemanni

shrimpfreshwater
1.25″·5+ gal·group 10+·peaceful
fish
medium

Spotted Headstander

Chilodus punctatus

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

Spotted Rainbowfish

Glossolepis maculosus

fishfreshwater
4.5″·30+ gal·group 6+·peaceful
fish
medium

Spotted Silver Dollar

Metynnis maculatus

fishfreshwater
6″·75+ gal·group 5+·peaceful
shrimp
medium

Sri Lanka Fan Shrimp

Atya scabra

shrimpfreshwater
2″·20+ gal·peaceful
plant
medium

Starhorn / Hygrophila auriculata

Hygrophila auriculata

plantfreshwater
Background·Medium–high light
fish
medium

Strawberry Betta

Betta albimarginata

fishfreshwater
1.5″·5+ gal·semi-aggr.
fish
medium

Striped Headstander

Anostomus anostomus

fishfreshwater
7″·55+ gal·semi-aggr.
fish
medium

Sturisoma Whiptail

Sturisoma panamense

fishfreshwater
8″·55+ gal·peaceful
coral
medium

Stylophora

Stylophora spp.

coralsaltwater
2″·50+ gal·peaceful
fish
medium

Subocellatus Krib

Pelvicachromis subocellatus

fishfreshwater
3.5″·20+ gal·semi-aggr.
fish
medium

Sumo Loach

Schistura balteata

fishfreshwater
2.5″·15+ gal·group 3+·semi-aggr.
shrimp
medium

Sunkist Babaulti Shrimp

Caridina babaulti

shrimpfreshwater
1.5″·5+ gal·group 10+·peaceful
fish
medium

Sunshine Peacock

Aulonocara baenschi

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

Surinam Eartheater

Geophagus surinamensis

fishfreshwater
10″·75+ gal·semi-aggr.
fish
medium

Swamp Guppy

Micropoecilia picta

fishfreshwater
1.5″·10+ gal·group 3+·peaceful
fish
medium

Swordtail Characin

Corynopoma riisei

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

Taeniatus Krib

Pelvicachromis taeniatus

fishfreshwater
3.5″·20+ gal·semi-aggr.
shrimp
medium

Taitibee Shrimp

Caridina sp. (Taitibee)

shrimpfreshwater
1.2″·5+ gal·group 10+·peaceful
fish
medium

Tanganyika Clown Goby

Eretmodus cyanostictus

fishfreshwater
3.5″·20+ gal·semi-aggr.
invertebrate
medium

Tangerine Lobster

Cherax holthuisi

invertebratefreshwater
4.7″·30+ gal·semi-aggr.
shrimp
medium

Tangerine Tiger Shrimp

Caridina serrata

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
fish
medium

Telescope Goldfish

Carassius auratus

fishfreshwater
7″·20+ gal·peaceful
fish
medium

Texas Cichlid

Herichthys cyanoguttatus

fishfreshwater
12″·55+ gal·aggressive
shrimp
medium

Thai Micro Crab

Limnopilos naiyanetri

shrimpfreshwater
0.4″·peaceful
fish
medium

Thick-Lipped Gourami

Trichogaster labiosa

fishfreshwater
4″·20+ gal·semi-aggr.
algae
medium

Thread Algae

Zygnema sp.

algaefreshwater

Very fine, dark green threads — slightly stiffer than Spirogyra and less silky. Wraps tightly around plant stems and mosses. Caused by low CO₂ and high light. Siamese Algae Eaters are one of the few fish that readily consume it.

fish
medium

Threadfin Acara

Acarichthys heckelii

fishfreshwater
8″·55+ gal·peaceful