Shoal & Stem

Species Catalogue

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

fish
Xexpert

Eggers' Notho

Nothobranchius eggersi

fishfreshwater
1.5″·10+ gal·semi-aggr.
fish
beginner

El Tigre Endler

Poecilia wingei

fishfreshwater
1.2″·5+ gal·group 3+·peaceful
plant
intermediate

Elatine Hydropiper

Elatine hydropiper

plantfreshwater

Tiny creeping plant with round paired leaves. Creates dense, moss-like carpets. Alternative to HC Cuba that tolerates slightly lower light.

fish
beginner

Electric Blue Acara

Andinoacara pulcher hybrid

fishfreshwater
6″·30+ gal·semi-aggr.
fish
intermediate

Electric Blue Agassiz's Dwarf Cichlid

Apistogramma agassizii

fishfreshwater
3″·20+ gal·group 2+·semi-aggr.
invertebrate
Mmedium

Electric Blue Crayfish

Procambarus alleni

invertebratefreshwater
5.5″·20+ gal·aggressive
fish
intermediate

Electric Blue Ram

Mikrogeophagus ramirezi

fishfreshwater
2.5″·20+ gal·group 2+·peaceful
fish
beginner

Electric Yellow Lab

Labidochromis caeruleus

fishfreshwater
4″·30+ gal·semi-aggr.
coral
Xexpert

Elegance Coral

Catalaphyllia jardinei

coralsaltwater
2″·40+ gal·peaceful
fish
beginner

Elegant Corydoras

Corydoras elegans

fishfreshwater
2.25″·15+ gal·group 6+·peaceful
plant
intermediate

Eleocharis Belem

Eleocharis sp. 'Belem'

plantfreshwater

An extremely fine, thread-like hairgrass originating from the Belem region of Brazil, producing the thinnest, most delicate stems of any Eleocharis in the hobby. Blades rarely exceed 3–5 cm tall, creating a wispy, ultra-fine carpet that looks unlike any other aquatic grass. Demands good light, CO₂, and a nutrient-rich substrate to spread reliably. A favourite among competitive aquascapers who want a finer-textured foreground than standard dwarf hairgrass provides.

plant
intermediate

Eleocharis Mini

Eleocharis sp. 'Mini'

plantfreshwater

The shortest Eleocharis — stays under 3 cm (1 in). Creates tight, lawn-like carpets. Prefers CO2 but can grow without it slowly.

fish
beginner

Elephant Ear Betta

Betta splendens 'Dumbo'

fishfreshwater
2.5″·5+ gal·semi-aggr.
fish
advanced

Elephant Nose Fish

Gnathonemus petersii

fishfreshwater
9″·50+ gal·semi-aggr.
fish
advanced

Elizabeth's Dwarf Cichlid

Apistogramma elizabethae

fishfreshwater
3″·20+ gal·semi-aggr.
fish
beginner

Ember Tetra

Hyphessobrycon amandae

fishfreshwater
0.8″·10+ gal·group 8+·peaceful
fish
beginner

Emerald Corydoras

Brochis splendens

fishfreshwater
3″·20+ gal·group 6+·peaceful
fish
intermediate

Emerald Dwarf Rasbora

Danio erythromicron

fishfreshwater
1″·10+ gal·group 8+·peaceful
fish
beginner

Emerald Eye Rasbora

Brevibora dorsiocellata

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

Emerald Green Shrimp

Neocaridina davidi

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

Emperor Angelfish

Pomacanthus imperator

fishsaltwater
15″·150+ gal·semi-aggr.
fish
beginner

Emperor Tetra

Nematobrycon palmeri

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

Empire Gudgeon

Hypseleotris compressa

fishfreshwater
4″·20+ gal·peaceful
fish
beginner

Endler Guppy

Poecilia wingei × Poecilia reticulata

fishfreshwater
1.5″·5+ gal·group 3+·peaceful
fish
beginner

Endler's Livebearer

Poecilia wingei

fishfreshwater
1.5″·10+ gal·group 3+·peaceful
plant
advanced

Eriocaulon King Crimson

Eriocaulon sp. 'King Crimson'

plantfreshwater

Deep red Eriocaulon rosette with needle-fine leaves. One of the reddest Eriocaulon varieties. Extremely demanding — needs very soft, acidic water.

plant
advanced

Eriocaulon Polaris

Eriocaulon sp. 'Polaris'

plantfreshwater

Rare Eriocaulon with short, star-shaped rosettes. Needs very soft water, CO2, and strong light. A coveted collector's plant.

plant
advanced

Eriocaulon Quinquangulare

Eriocaulon quinquangulare

plantfreshwater

Large Eriocaulon with wide rosettes of bright green strap-like leaves. One of the bigger and more forgiving Eriocaulon species.

plant
Xexpert

Eriocaulon Ratnagiricum

Eriocaulon ratnagiricum

plantfreshwater

Eriocaulon ratnagiricum is a delicate, rosette-forming stem plant with fine, needle-like leaves that create an intricate, feathery appearance. Native to soft, acidic waters, it displays pale green to yellowish foliage and is prized by experienced aquascapers for its architectural beauty in high-tech planted tanks.

plant
advanced

Eriocaulon Vietnam

Eriocaulon sp. 'Vietnam'

plantfreshwater

Beautiful needle-leaved rosette plant from Vietnam. Grass-like with fine, dense foliage. Requires soft water and high-tech setup.

fish
Eeasy

Espei Pencilfish

Nannostomus espei

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

European Frogbit

Hydrocharis morsus-ranae

plantfreshwater

Floating plant with small, round lily-pad leaves and long trailing roots. Similar to Amazon Frogbit but stays smaller. Cold-tolerant.

fish
intermediate

Exclamation Point Rasbora

Boraras urophthalmoides

fishfreshwater
0.8″·5+ gal·group 8+·peaceful
shrimp
Hhard

Extreme Black King Kong Shrimp

Caridina logemanni

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

Extreme Panda Shrimp

Caridina logemanni

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

Extreme Red King Kong Shrimp

Caridina logemanni

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