Shoal & Stem

Species Catalogue

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

terrestrial
easy

English Ivy

Hedera helix

terrestrialfreshwater
Low to bright indirect light·Moderate growth
plant
hard

Eriocaulon King Crimson

Eriocaulon sp. 'King Crimson'

plantfreshwater
Midground·Slow growth
plant
hard

Eriocaulon Polaris

Eriocaulon sp. 'Polaris'

plantfreshwater
Foreground·Slow growth
plant
hard

Eriocaulon Quinquangulare

Eriocaulon quinquangulare

plantfreshwater
Midground·Slow growth
plant
expert

Eriocaulon Ratnagiricum

Eriocaulon ratnagiricum

plantfreshwater
Midground·Slow growth
plant
hard

Eriocaulon Vietnam

Eriocaulon sp. 'Vietnam'

plantfreshwater
Foreground·Slow 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
shrimp
hard

Extreme Black King Kong Shrimp

Caridina logemanni

shrimpfreshwater
1.5″·10+ gal·group 10+·peaceful
shrimp
hard

Extreme Panda Shrimp

Caridina logemanni

shrimpfreshwater
1.25″·10+ gal·group 10+·peaceful
shrimp
hard

Extreme Red King Kong Shrimp

Caridina logemanni

shrimpfreshwater
1.25″·10+ gal·group 10+·peaceful
shrimp
medium

Eye Spot Pinto Shrimp

Caridina logemanni

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

Fahaka Puffer

Tetraodon lineatus

fishfreshwater
18″·125+ gal·aggressive
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
medium

Fancy Goldfish

Carassius auratus (fancy varieties)

fishfreshwater
8″·30+ gal·group 2+·peaceful
shrimp
medium

Fancy Tiger Pinto Shrimp

Caridina logemanni

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

Fantail Goldfish

Carassius auratus

fishfreshwater
7″·20+ gal·peaceful
fish
medium

Farlowella Catfish

Farlowella acus

fishfreshwater
6″·25+ gal·peaceful
coral
easy

Favia Coral

Favia speciosa

coralsaltwater
2″·30+ gal·peaceful
coral
medium

Favites Brain Coral

Favites spp.

coralsaltwater
2″·50+ 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
medium

Featherfin Squeaker

Synodontis eupterus

fishfreshwater
5.9″·40+ gal·peaceful
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.
fish
medium

Festivum

Mesonauta festivus

fishfreshwater
6″·45+ gal·peaceful
crab
medium

Fiddler Crab

Uca pugnax

crabbrackish
2″·20+ gal·group 3+·semi-aggr.
snail
easy

Fighting Conch

Strombus alatus

snailsaltwater
3″·30+ gal·peaceful
fish
medium

Figure Eight Puffer

Dichotomyctere ocellatus

fishbrackish
3″·20+ gal·aggressive
fish
easy

Filament Barb

Dawkinsia filamentosa

fishfreshwater
5″·30+ gal·group 6+·peaceful
plant
medium

Fine-leaved Pondweed

Potamogeton gayi

plantfreshwater
Midground
coral
medium

Fire Coral

Millepora alcicornis

coralsaltwater
2″·30+ gal·peaceful
fish
medium

Fire Rasbora

Rasboroides vaterifloris

fishfreshwater
1.5″·15+ gal·group 8+·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