Shoal & Stem

Species Catalogue

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

plant
hard

Rotala Macrandra Narrow Leaf

Rotala macrandra Narrow Leaf

plantfreshwater
Background·Medium growth
plant
hard

Rotala Mexicana Goias

Rotala mexicana

plantfreshwater
Midground·High light·Slow growth
plant
hard

Rotala Mini Butterfly

Rotala sp. 'Mini Butterfly'

plantfreshwater
Midground·Slow growth
plant
hard

Rotala Orange Juice

Rotala sp. 'Orange Juice'

plantfreshwater
Midground·Moderate growth
plant
hard

Rotala Vietnam

Rotala sp.

plantfreshwater
Background
plant
hard

Rotala Wallichii

Rotala wallichii

plantfreshwater
Very high light·Medium growth
fish
hard

Samurai Gourami

Sphaerichthys vaillanti

fishfreshwater
2″·15+ gal·peaceful
shrimp
hard

Shadow Panda Shrimp

Caridina cantonensis

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
shrimp
hard

Skunk Pinto Shrimp

Caridina logemanni

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

Snakeskin Discus

Symphysodon sp.

fishfreshwater
6″·55+ gal·group 4+·peaceful
fish
hard

Spotted Dragonet

Synchiropus picturatus

fishsaltwater
3″·55+ gal·peaceful
algae
hard

Staghorn Algae

Compsopogon sp.

algaefreshwater

Grey-green single strands that branch into antler-like forks — often tangled in plant leaves and filter intakes. Like BBA, it signals CO₂ problems. More responsive to spot-treatment with liquid carbon than BBA. Siamese Algae Eaters will consume it.

moss
hard

Star Moss

Tortula ruralis

mossfreshwater

Star Moss (Tortula ruralis) is a terrestrial moss species occasionally used in paludariums and riparian aquascaping, though it is not a true aquatic plant. It features fine, delicate branching with small leaves and a distinctive star-like appearance when viewed from above. This moss is extremely hardy and desiccation-tolerant but struggles when fully submerged for extended periods.

coral
hard

Sun Coral

Tubastrea aurea

coralsaltwater
2″·30+ gal·peaceful
fish
hard

Sunshine Pleco

Scobinancistrus aureatus

fishfreshwater
24″·150+ gal·peaceful
plant
hard

Syngonanthus Belem

Syngonanthus sp. 'Belem'

plantfreshwater
Midground·Slow growth
plant
hard

Syngonanthus Macrocaulon

Syngonanthus macrocaulon

plantfreshwater
Background·Slow growth
shrimp
hard

Tiger Shrimp

Caridina mariae

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
fish
hard

Tire Track Eel

Mastacembelus favus

fishfreshwater
28″·75+ gal·semi-aggr.
plant
hard

Tonina Belem

Tonina sp. 'Belem'

plantfreshwater
Midground·Slow growth
plant
hard

Tonina Fluviatilis

Tonina fluviatilis

plantfreshwater
Background·High light·Slow growth
fish
hard

Tropheus

Tropheus moorii

fishfreshwater
5″·75+ gal·group 12+·aggressive
algae
hard

Turf Algae

Various genera

algaesaltwater

A dense mat of mixed short filamentous algae — the dominant algae type on wave-swept reef flats in nature. In captivity it traps detritus and is extremely difficult to manually remove. Sea urchins (Diadema, Tuxedo) and tangs are the most effective grazers. Consider a manual scraping plus herbivore-stocking approach.

fish
hard

Uaru

Uaru amphiacanthoides

fishfreshwater
10″·75+ gal·peaceful
algae
hard

Water Net Algae

Hydrodictyon reticulatum

algaefreshwater

Remarkable bright green net-like colonies — a tessellated honeycomb of cells visible to the naked eye. Beautiful under a microscope but a serious nuisance in garden ponds. Thrives in warm, nutrient-rich water. Manual removal is the primary method as few animals eat it effectively.

plant
hard

Water Violet

Hottonia palustris

plantfreshwater
Background
shrimp
hard

Wine Red Shrimp

Caridina cantonensis

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
fish
hard

Zebra Pleco

Hypancistrus zebra

fishfreshwater
3.5″·30+ gal·peaceful