Shoal & Stem

Species Catalogue

1,376 species — care guides, community photos, water parameters, and tank-mate compatibility.

fish
beginner

White Medaka

Oryzias latipes

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

White Molly

Poecilia sphenops

fishfreshwater
3″·15+ gal·group 3+·peaceful
shrimp
Mmedium

White Orchid Shrimp

Caridina spinata

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
shrimp
Eeasy

White Pearl Shrimp

Neocaridina palmata

shrimpfreshwater
1.5″·5+ gal·group 10+·peaceful
invertebrate
Mmedium

White Specter Crayfish

Procambarus sp.

invertebratefreshwater
5″·20+ gal·aggressive
snail
Mmedium

White Spotted Rabbit Snail

Tylomelania patriarchalis

snailfreshwater
1.5″·20+ gal·peaceful
snail
beginner

Wild Mystery Snail

Pomacea bridgesii

snailfreshwater
2″·5+ gal·peaceful
fish
beginner

Wild Type Guppy

Poecilia reticulata

fishfreshwater
2″·10+ gal·group 3+·peaceful
plant
beginner

Willis's Cryptocoryne

Cryptocoryne x willisii

plantfreshwater

One of the smallest and most versatile cryptocorynes — stays compact even in high light. Deep green, slightly wavy leaves. Perfect low-maintenance foreground or midground plant that spreads via runners.

plant
beginner

Willow Hygrophila

Hygrophila salicifolia

plantfreshwater

Long, willow-shaped leaves up to 15 cm in length give this species a softer, more natural look compared to other Hygrophilas. The leaves are pale green and narrow, creating a flowing appearance in flow or current. One of the taller background choices in the genus.

plant
Eeasy

Windelov Java Fern

Microsorum pteropus Windelov

plantfreshwater

Windelov Java Fern is a delicate, feathery variant of the classic Java Fern with distinctive finely-divided, lacy fronds that create an elegant, almost fern-like appearance. This slow-growing epiphyte is highly valued for its ornamental appeal and ease of care, making it ideal for aquascapers seeking a refined planted look without demanding conditions.

shrimp
advanced

Wine Red Shrimp

Caridina cantonensis

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
shrimp
Mmedium

Wood Shrimp

Atyopsis spinipes

shrimpfreshwater
2″·20+ gal·peaceful
fish
intermediate

Wrestling Halfbeak

Dermogenys pusilla

fishfreshwater
2.8″·15+ gal·semi-aggr.
fish
beginner

X-Ray Tetra

Pristella maxillaris

fishfreshwater
1.75″·15+ gal·group 6+·peaceful
fish
beginner

Yellow Assessor

Assessor flavissimus

fishsaltwater
2.5″·20+ gal·peaceful
shrimp
Eeasy

Yellow Cheek Shrimp

Caridina striata

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
shrimp
beginner

Yellow Fire Shrimp

Neocaridina davidi

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
shrimp
Eeasy

Yellow Golden Back Shrimp

Neocaridina davidi

shrimpfreshwater
1.5″·5+ gal·group 10+·peaceful
Yellow Neocaridinabeginner

Yellow Neocaridina

Neocaridina davidi var. Yellow

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
shrimp
Eeasy

Yellow Neocaridina Shrimp

Neocaridina davidi

shrimpfreshwater
1.5″·5+ gal·group 6+·peaceful
fish
Eeasy

Yellow Phantom Tetra

Hyphessobrycon roseus

fishfreshwater
1.2″·10+ gal·group 6+·peaceful
snail
Eeasy

Yellow Rabbit Snail

Tylomelania towutensis

snailfreshwater
1.5″·20+ gal·peaceful
shrimp
Eeasy

Yellow Rili Shrimp

Neocaridina davidi

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

Yellow Swordtail

Xiphophorus hellerii

fishfreshwater
4.5″·20+ gal·group 3+·peaceful
fish
beginner

Yellow Tang

Zebrasoma flavescens

fishsaltwater
8″·75+ gal·semi-aggr.
fish
beginner

Yellow Tiger Endler

Poecilia wingei

fishfreshwater
1.2″·5+ gal·group 3+·peaceful
fish
beginner

Yellow Watchman Goby

Cryptocentrus cinctus

fishsaltwater
3.5″·30+ gal·peaceful
fish
beginner

Yellowhead Jawfish

Opistognathus aurifrons

fishsaltwater
4″·30+ gal·group 3+·peaceful
fish
beginner

Yellowtail Blue Damsel

Chrysiptera parasema

fishsaltwater
2.5″·30+ gal·semi-aggr.
fish
beginner

Yoyo Loach

Botia almorhae

fishfreshwater
2.5″·20+ gal·group 4+·semi-aggr.
fish
beginner

Yucatan Molly

Poecilia velifera

fishfreshwater
6″·40+ gal·group 3+·peaceful
fish
intermediate

Zebra Angelfish

Pterophyllum scalare

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

Zebra Danio

Danio rerio

fishfreshwater
2″·10+ gal·group 6+·peaceful
fish
beginner

Zebra Loach

Botia striata

fishfreshwater
3.5″·20+ gal·group 5+·semi-aggr.
snail
beginner

Zebra Nerite Snail

Neritina natalensis 'Zebra'

snailfreshwater
1″·5+ gal·peaceful