Shoal & Stem

Species Catalogue

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

fish
easy

Endler Guppy

Poecilia wingei × Poecilia reticulata

fishfreshwater
1.5″·5+ gal·group 3+·peaceful
terrestrial
easy

English Ivy

Hedera helix

terrestrialfreshwater
Low to bright indirect light·Moderate growth
fish
easy

Espei Pencilfish

Nannostomus espei

fishfreshwater
1.2″·10+ gal·group 6+·peaceful
plant
easy

European Frogbit

Hydrocharis morsus-ranae

plantfreshwater
Floating·Fast growth
plant
easy

Fairy Moss

Azolla filiculoides

plantfreshwater
Floating·Very growth
fish
easy

False Bandit Corydoras

Corydoras melini

fishfreshwater
1.3″·10+ gal·group 4+·peaceful
fish
easy

False Rummy Nose Tetra

Petitella georgiae

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

Fantail Goldfish

Carassius auratus

fishfreshwater
7″·20+ gal·peaceful
coral
easy

Favia Coral

Favia speciosa

coralsaltwater
2″·30+ gal·peaceful
algae
easy

Feather Caulerpa

Caulerpa sertularioides

algaesaltwater

Feathery, fern-like fronds on creeping runners — arguably the most attractive Caulerpa species. Works well in display refugia where its ornamental appearance is on show. Fast-growing nutrient exporter. Same caveats as other Caulerpa: harvest regularly to prevent sexual reproduction.

fish
easy

Featherfin Tetra

Hemigrammus unilineatus

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

Feathertail Betta

Betta splendens

fishfreshwater
3″·5+ gal·semi-aggr.
snail
easy

Fighting Conch

Strombus alatus

snailsaltwater
3″·30+ gal·peaceful
fish
easy

Filament Barb

Dawkinsia filamentosa

fishfreshwater
5″·30+ gal·group 6+·peaceful
shrimp
easy

Fire Shrimp

Lysmata debelius

shrimpsaltwater
2″·20+ gal·peaceful
fish
easy

Firefish Goby

Nemateleotris magnifica

fishsaltwater
3″·20+ gal·group 2+·peaceful
fish
easy

Five-Banded Barb

Desmopuntius pentazona

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

Flag Tetra

Hyphessobrycon heterorhabdus

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

Flame Hawkfish

Neocirrhites armatus

fishsaltwater
3.5″·30+ gal·semi-aggr.
plant
easy

Flame Moss Mini

Taxiphyllum sp. 'Flame Mini'

plantfreshwater
Epiphyte·Slow growth
fish
easy

Flame Tetra

Hyphessobrycon flammeus

fishfreshwater
1.6″·10+ gal·group 6+·peaceful
fish
easy

Flowerhorn Cichlid

Hybrid cichlid

fishfreshwater
12″·75+ gal·aggressive
fish
easy

Foxface Rabbitfish

Siganus vulpinus

fishsaltwater
9″·75+ gal·peaceful
algae
easy

Fuzz Algae

Stigeoclonium sp.

algaefreshwater

Short, fuzzy green tufts — typically 2–5 mm — that appear on the edges of plant leaves, hardscape, and equipment. One of the most common algae in newly planted tanks. Easily grazed by Amano shrimp, Otocinclus, and nerite snails. Caused by light excess or inconsistent CO₂ early in a tank's life. Usually resolves as the tank matures.

fish
easy

Gardneri Killifish

Fundulopanchax gardneri

fishfreshwater
2.5″·10+ gal·group 2+·semi-aggr.
plant
easy

Giant Bacopa

Bacopa amplexicaulis

plantfreshwater
Background·Low to high light·Fast growth
fish
easy

Giant Danio

Devario aequipinnatus

fishfreshwater
4″·30+ gal·group 6+·peaceful
fish
easy

Giant Gourami

Osphronemus goramy

fishfreshwater
24″·200+ gal·semi-aggr.
plant
easy

Giant Sagittaria

Sagittaria platyphylla

plantfreshwater
Background·Fast growth
fish
easy

Glass Bloodfin Tetra

Prionobrama filigera

fishfreshwater
1.6″·20+ gal·group 6+·peaceful
fish
easy

GloFish Betta

Betta splendens

fishfreshwater
2.5″·5+ gal·aggressive
fish
easy

GloFish Corydoras

Corydoras aeneus

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

GloFish Tiger Barb

Puntigrus tetrazona

fishfreshwater
3″·20+ gal·group 6+·semi-aggr.
fish
easy

Glowlight Danio

Danio choprai

fishfreshwater
1.25″·10+ gal·group 6+·peaceful
fish
easy

Gold Danio

Danio albolineatus

fishfreshwater
2.5″·10+ gal·group 6+·peaceful
fish
easy

Gold Medaka

Oryzias latipes

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