Shoal & Stem

Species Catalogue

1,580 species — care guides, community photos, water parameters, and tank-mate compatibility.

fish
medium

African Knife Fish

Xenomystus nigri

fishfreshwater
6″·55+ gal·semi-aggr.
fish
expert

African Lungfish

Protopterus annectens

fishfreshwater
39″·200+ gal·aggressive
plant
easy

African Tiger Lotus

Nymphaea zenkeri

plantfreshwater

Stunning lily with red-spotted leaves. Grows from a bulb and alternates between broad, flat pads and long petioles reaching the surface. Remove surface leaves to keep it compact.

fish
easy

Agassiz's Corydoras

Corydoras agassizii

fishfreshwater
1.5″·20+ gal·group 4+·peaceful
fish
medium

Agassiz's Dwarf Cichlid

Apistogramma agassizii

fishfreshwater
3″·20+ gal·group 2+·semi-aggr.
fish
medium

Albino Angelfish

Pterophyllum scalare

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

Albino Longfin Bristlenose Pleco

Ancistrus sp.

fishfreshwater
5″·20+ gal·peaceful
fish
medium

Albino Oscar

Astronotus ocellatus

fishfreshwater
14″·75+ gal·semi-aggr.
fish
easy

Albino Pygmy Corydoras

Corydoras pygmaeus

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

Albino Rainbow Shark

Epalzeorhynchos frenatum

fishfreshwater
6″·55+ gal·semi-aggr.
fish
medium

Albino Tiger Barb

Puntigrus tetrazona

fishfreshwater
3″·20+ gal·group 6+·semi-aggr.
terrestrial
moderate

Alocasia Polly

Alocasia × amazonica 'Polly'

terrestrialfreshwater
Bright indirect light·Moderate growth
plant
hard

Alternanthera Reineckii Pink

Alternanthera reineckii Pink

plantfreshwater
Midground·Medium growth
plant
hard

Alternanthera Reineckii Purple

Alternanthera reineckii Purple

plantfreshwater
Midground·Medium growth
fish
hard

Altum Angelfish

Pterophyllum altum

fishfreshwater
8″·55+ gal·group 2+·semi-aggr.
fish
medium

Amazon Leaf Fish

Monocirrhus polyacanthus

fishfreshwater
3.5″·20+ gal·peaceful
fish
easy

Amazon Molly

Poecilia formosa

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

Ambiacus Corydoras

Corydoras ambiacus

fishfreshwater
2″·15+ gal·group 6+·peaceful
plant
medium

Ammannia Gracilis

Ammannia gracilis

plantfreshwater
Background·High light·Moderate–fast growth
plant
medium

Ammannia Senegalensis

Ammannia senegalensis

plantfreshwater
Background·Moderate growth
algae
medium

Amphiroa (Jointed Coralline)

Amphiroa fragilissima

algaesaltwater

Delicate, jointed branching coralline algae with alternating calcified segments and flexible joints — looks like tiny white-pink antlers. Forms low tufts on rockwork. A living indicator of good calcium and alkalinity levels. Grazed by urchins but otherwise grows without intervention in a mature reef.

plant
easy

Anchor Moss

Taxiphyllum sp. 'Anchor'

plantfreshwater
Epiphyte·Slow growth
terrestrial
easy

Anthurium

Anthurium andraeanum

terrestrialfreshwater
Bright indirect light·Moderate growth
plant
easy

Anubias Broad Leaf

Anubias barteri var. barteri

plantfreshwater
Epiphyte·Slow growth
plant
easy

Anubias Gracilis

Anubias gracilis

plantfreshwater
Midground·Low to medium light·Slow growth
plant
easy

Anubias Hastifolia

Anubias hastifolia

plantfreshwater
Low to medium light·Very growth
plant
easy

Anubias Lanceolata

Anubias barteri var. lanceolata

plantfreshwater
Background·Low to medium light·Slow growth
plant
easy

Anubias Nana Bonsai

Anubias barteri var. nana

plantfreshwater
Foreground·Low to medium light·Very growth
plant
easy

Anubias Nana Pinto

Anubias barteri var. nana Pinto

plantfreshwater
Epiphyte·Slow growth
plant
easy

Anubias Nangi

Anubias barteri 'Nangi'

plantfreshwater
Epiphyte·Slow growth
plant
medium

Anubias Snow White

Anubias barteri var. nana

plantfreshwater
Foreground·Low to medium light·Very growth
plant
easy

Anubias Stardust

Anubias 'Stardust'

plantfreshwater
Epiphyte·Slow growth
plant
easy

Anubias Wrinkle Leaf

Anubias barteri Wrinkle Leaf

plantfreshwater
Epiphyte·Slow growth
fish
medium

Apistogramma Baenschi

Apistogramma baenschi

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

Apistogramma Bitaeniata

Apistogramma bitaeniata

fishfreshwater
2.5″·20+ gal·peaceful
fish
medium

Apistogramma Iniridae

Apistogramma iniridae

fishfreshwater
2.5″·20+ gal·peaceful