Shoal & Stem

Species Catalogue

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

fish
medium

Chinese Hillstream Loach

Pseudogastromyzon myersi

fishfreshwater
2.5″·20+ gal·group 3+·peaceful
terrestrial
easy

Chinese Money Plant

Pilea peperomioides

terrestrialfreshwater
Bright indirect light·Moderate growth
snail
easy

Chinese Trapdoor Snail

Bellamya chinensis

snailfreshwater
2.5″·20+ gal·peaceful
fish
medium

Chocolate Cichlid

Hypselecara temporalis

fishfreshwater
10″·75+ gal·peaceful
fish
hard

Chocolate Gourami

Sphaerichthys osphromenoides

fishfreshwater
2.5″·20+ gal·group 4+·peaceful
fish
easy

Chocolate Kuhli Loach

Pangio oblonga

fishfreshwater
3.5″·20+ gal·group 6+·peaceful
shrimp
easy

Chocolate Rili Shrimp

Neocaridina davidi

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

Cinnamon Clownfish

Amphiprion melanopus

fishsaltwater
4.5″·30+ gal·semi-aggr.
fish
easy

Clark's Clownfish

Amphiprion clarkii

fishsaltwater
5″·20+ gal·semi-aggr.
shrimp
easy

Cleaner Shrimp

Lysmata amboinensis

shrimpsaltwater
2.5″·30+ gal·group 2+·peaceful
fish
hard

Cleaner Wrasse

Labroides dimidiatus

fishsaltwater
5.5″·55+ gal·peaceful
fish
medium

Climbing Perch

Anabas testudineus

fishfreshwater
10″·40+ gal·semi-aggr.
coral
easy

Clove Polyps

Clavularia sp.

coralsaltwater
2″·30+ gal·peaceful
fish
expert

Clown Featherback

Chitala ornata

fishfreshwater
39″·200+ gal·aggressive
fish
medium

Clown Rasbora

Rasbora kalochroma

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

Clown Triggerfish

Balistoides conspicillum

fishsaltwater
20″·180+ gal·aggressive
fish
medium

Cobalt Blue Zebra Cichlid

Maylandia callainos

fishfreshwater
5.5″·40+ gal·aggressive
fish
medium

Cochu's Blue Tetra

Boehlkea fredcochui

fishfreshwater
2″·20+ gal·group 8+·semi-aggr.
fish
medium

Cockatoo Dwarf Cichlid

Apistogramma cacatuoides

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

Codium (Sea Sponge Weed)

Codium sp.

algaesaltwater

Spongy, dark green dichotomously branched macroalgae with a velvety, foam-like texture. Attaches to rock and can grow quite large. In temperate reef tanks it is a natural part of the fauna; in tropical tanks it can become invasive. Slugs (nudibranchs) and sea hares may graze it.

terrestrial
easy

Coleus

Coleus scutellarioides

terrestrialfreshwater
Bright indirect to some sun light·Fast growth
fish
easy

Colombian Tetra

Hyphessobrycon columbianus

fishfreshwater
2.5″·20+ gal·group 6+·semi-aggr.
coral
easy

Colt Coral

Cladiella sp.

coralsaltwater
2″·30+ gal·peaceful
fish
medium

Compressiceps Cichlid

Altolamprologus compressiceps

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

Concolor Corydoras

Corydoras concolor

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

Congo Puffer

Tetraodon miurus

fishfreshwater
6″·30+ gal·aggressive
fish
easy

Congo Tetra

Phenacogrammus interruptus

fishfreshwater
3.5″·30+ gal·group 6+·peaceful
fish
easy

Convict Cichlid

Amatitlania nigrofasciata

fishfreshwater
6″·30+ gal·aggressive
fish
easy

Convict Julie

Julidochromis regani

fishfreshwater
3.5″·20+ gal·peaceful
amphibian
medium

Copper Axolotl

Ambystoma mexicanum

amphibianfreshwater
10″·20+ gal·peaceful
fish
hard

Copperband Butterflyfish

Chelmon rostratus

fishsaltwater
8″·75+ gal·peaceful
shrimp
easy

Coral Banded Shrimp

Stenopus hispidus

shrimpsaltwater
3″·20+ gal·semi-aggr.
plant
medium

Coral Moss

Riccardia chamedryfolia

plantfreshwater
Epiphyte·Very growth
fish
medium

Coral Red Pencilfish

Nannostomus mortenthaleri

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

Coralline Algae

Corallinales spp.

algaesaltwater

Calcified encrusting algae that paints live rock, glass, and equipment in shades of pink, purple, and white — the hallmark of a mature, healthy reef. Requires stable calcium (400–450 ppm) and alkalinity (8–9 dKH). Does not need dedicated lighting but benefits from reef-level light. Spreads naturally from live rock and purchased plugs.

terrestrial
easy

Corn Plant

Dracaena fragrans

terrestrialfreshwater
Bright indirect light·Slow growth