Species Catalogue
727 species matching your filters — care guides, community photos, water parameters, and tank-mate compatibility.
Salvinia Natans
Salvinia natans
Samolus Valerandi
Samolus valerandi
Schwartzi Corydoras
Corydoras schwartzi
Scissortail Dartfish
Ptereleotris evides
Scissortail Rasbora
Rasbora trilineata
Scopas Tang
Zebrasoma scopas
Sea Lettuce
Ulva lactuca
Bright green, tissue-thin sheets of macroalgae familiar on coastlines worldwide. Fast-growing nutrient exporter and a relished food for tangs, urchins, and rabbitfish. Tolerates a very wide temperature and salinity range. Can become weedy if not harvested — keep export-focused.
Serpae Tetra
Hyphessobrycon eques
Severum
Heros severus
Sexy Shrimp
Thor amboinensis
Shell Dweller Cichlid
Lamprologus ocellatus
Shortfin Molly
Poecilia mexicana
Shubunkin Goldfish
Carassius auratus
Siamese Algae Eater
Crossocheilus oblongus
Siamese Temple Plant
Hygrophila corymbosa
Silver Dollar
Metynnis argenteus
Silvertip Tetra
Hasemania nana
Similis Corydoras
Corydoras similis
Similis Shell Dweller
Neolamprologus similis
Singapore Moss
Vesicularia sp. 'Singapore'
Six Line Wrasse
Pseudocheilinus hexataenia
Skunk Corydoras
Corydoras arcuatus
Smiling Cichlid
Laetacara curviceps
Snake Chest Endler
Poecilia wingei
Snakeskin Guppy
Poecilia reticulata
Sodalis Corydoras
Corydoras sodalis
South America Moss
Taxiphyllum sp. 'South America'
Spade Tail Betta
Betta splendens
Spanner Barb
Barbodes lateristriga
Sparkling Gourami
Trichopsis pumila
Spiky Moss
Taxiphyllum sp. 'Spiky'
Spirogyra
Spirogyra sp.
Bright green filamentous algae with distinctive spiral chloroplasts. In small amounts it's a natural part of the ecosystem and a food source for many invertebrates. Can quickly overtake a tank if nutrients or CO₂ are out of balance. Best controlled by reducing phosphates and manual removal.
Spixi Snail
Asolene spixi
Spotted Danio
Danio nigrofasciatus
Spotted Rainbowfish
Melanotaenia maccullochi
Spotted Raphael Catfish
Agamyxis pectinifrons