Shoal & Stem

Species Catalogue

1,570 species — care guides, community photos, water parameters, and tank-mate compatibility.

fish
medium

Viejita Dwarf Cichlid

Apistogramma viejita

fishfreshwater
2.5″·20+ gal·semi-aggr.
fish
easy

Vietnamese Cardinal Minnow

Tanichthys micagemmae

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

Volitans Lionfish

Pterois volitans

fishsaltwater
15″·120+ gal·semi-aggr.
fish
easy

Wagtail Platy

Xiphophorus maculatus

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

Walker's Killifish

Fundulopanchax walkeri

fishfreshwater
1.5″·10+ gal·peaceful
terrestrial
easy

Wandering Jew

Tradescantia zebrina

terrestrialfreshwater
Medium to bright indirect light·Fast growth
plant
medium

Water Caltrop

Trapa natans

plantfreshwater
Floating·Moderate growth
algae
hard

Water Net Algae

Hydrodictyon reticulatum

algaefreshwater

Remarkable bright green net-like colonies — a tessellated honeycomb of cells visible to the naked eye. Beautiful under a microscope but a serious nuisance in garden ponds. Thrives in warm, nutrient-rich water. Manual removal is the primary method as few animals eat it effectively.

plant
hard

Water Violet

Hottonia palustris

plantfreshwater
Background
terrestrial
easy

Watermelon Peperomia

Peperomia argyreia

terrestrialfreshwater
Bright indirect light·Moderate growth
plant
expert

Waterwort

Elatine triandra

plantfreshwater
Carpet
fish
medium

Weitzmani Corydoras

Corydoras weitzmani

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

Western Rainbowfish

Melanotaenia australis

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

Whiptail Catfish

Rineloricaria lanceolata

fishfreshwater
5″·30+ gal·peaceful
shrimp
medium

Whisker Shrimp

Macrobrachium lanchesteri

shrimpfreshwater
8″·30+ gal·semi-aggr.
amphibian
medium

White Albino Axolotl

Ambystoma mexicanum

amphibianfreshwater
10″·20+ gal·peaceful
fish
medium

White Calvus

Altolamprologus calvus

fishfreshwater
5″·30+ gal·semi-aggr.
snail
medium

White Hercules Snail

Brotia herculea

snailfreshwater
2″·20+ gal·peaceful
fish
easy

White Medaka

Oryzias latipes

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

White Molly

Poecilia sphenops

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

White Orchid Shrimp

Caridina spinata

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

White Pearl Shrimp

Neocaridina palmata

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

White River Crawfish

Procambarus acutus

invertebratefreshwater
4.5″·20+ gal·semi-aggr.
fish
easy

White Skirt Tetra

Gymnocorymbus ternetzi

fishfreshwater
2.5″·15+ gal·group 6+·peaceful
invertebrate
medium

White Specter Crayfish

Procambarus sp.

invertebratefreshwater
5″·20+ gal·aggressive
snail
medium

White Spotted Rabbit Snail

Tylomelania patriarchalis

snailfreshwater
1.5″·20+ gal·peaceful
snail
easy

Wild Mystery Snail

Pomacea bridgesii

snailfreshwater
2″·5+ gal·peaceful
amphibian
medium

Wild Type Axolotl

Ambystoma mexicanum

amphibianfreshwater
10″·20+ gal·peaceful
fish
easy

Wild Type Guppy

Poecilia reticulata

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

Willis's Cryptocoryne

Cryptocoryne x willisii

plantfreshwater
Foreground
plant
easy

Willow Hygrophila

Hygrophila salicifolia

plantfreshwater
Background·Low–high light
shrimp
hard

Wine Red Shrimp

Caridina cantonensis

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

Wolf Fish

Hoplias malabaricus

fishfreshwater
35″·150+ gal·aggressive
shrimp
medium

Wood Shrimp

Atyopsis spinipes

shrimpfreshwater
2″·20+ gal·peaceful
fish
medium

Wrestling Halfbeak

Dermogenys pusilla

fishfreshwater
2.8″·15+ gal·semi-aggr.
invertebrate
medium

Yabby

Cherax destructor

invertebratefreshwater
6″·20+ gal·aggressive