Species
Browsing 1,022 species. Use the filters below to narrow down.
Commerson's Sea Pike
FishSphyraena barracuda
A true apex predator that grows to nearly six feet long.
Common Egg Cowrie
InvertOvula ovum
A glossy white shell with a jet-black mantle that turns heads in any reef tank.
Condy Anemone
InvertCondylactis gigantea
A bold Caribbean anemone that thrives without a clownfish partner.
Congo Catfish
FishSynodontis aterrima
A small but feisty Congo catfish that keeps tankmates on their toes.
Congo Catfish
FishSynodontis greshoffi
A boldly patterned Congo catfish that's tougher than it looks but easier than most Synos.
Congo Killi
FishAphyosemion congicum
A small forest-stream killifish from the Congo with surprisingly specific needs.
Congo Rapids Cichlid
FishLamprologus congoensis
A bottom-hugging Congo rapids cichlid with a charmingly jerky swim and a fiery temper.
Constricted Leaf Coral
CoralAgaricia fragilis
A low-light Caribbean plate coral that thrives where most corals struggle.
Coral Anemone
CoralDiscosoma carlgreni
A hardy, low-light corallimorpharian with forked tentacles from the subtropical Atlantic.
Coral Banded Shrimp
InvertStenopus hispidus
Bold red-and-white stripes make this reef shrimp impossible to overlook.
Coral Beauty Angelfish
FishCentropyge bispinosa
A reef-dwelling dwarf angel with bold color and a feisty personality.
Corky Sea Finger
CoralBriareum asbestinum
A hardy soft coral that carpets Caribbean reefs in purple-tipped polyps.
Cornucopic Coral
CoralCornularia cornucopiae
A soft coral from European waters that rarely shows up in reef tanks.
Corrientes Corydoras
FishCorydoras aurofrenatus
A compact armored catfish from Paraguay with distinctive flank markings and an unusual breathing trick.
Corrugated Coral
CoralPavona varians
A flexible, low-demand coral that adapts its shape to almost any surface.
Corydoras cochui
FishA tiny, sociable armored catfish that occasionally breathes air.
Corydoras gladysae
FishA tiny rock-dwelling catfish from the Argentine Andes, rarely if ever seen in aquariums.
Cowboy Whiptail
FishLamontichthys llanero
A rare South American whiptail that rewards patient keepers with unusual character.
Crazy Fish
FishButis butis
The brackish ambush predator that hunts just as happily upside down as right-side up.
creeping primrose-willow
PlantLudwigia repens
A hardy red-green stem plant that rewards even beginners with bold color.
Creeping Primrose-willow
PlantLudwigia repens 'Rubin'
Deep burgundy foliage that intensifies under brighter light, great for bold background color.
Crocea Clam
InvertTridacna crocea
A compact, vividly patterned giant clam that bores into reef rock for security.
Crocodile Catfish
FishBagarius suchus
A rapids-dwelling predator built more for public aquariums than home tanks.
Crocodile Stickleback
FishIndostomus crocodilus
A tiny armored oddity from Thai blackwater streams, best kept in small groups.
Crystal Red Shrimp
InvertCaridina logemanni
The iconic red-and-white dwarf shrimp that turned nano tanks into an art form.
Cuckoo Catfish
FishSynodontis petricola
The catfish that tricks cichlids into raising its young. Nature's ultimate con artist.
Damba
FishParetrolplus damii
A rare Malagasy cichlid with fascinating pit-digging breeding behavior.
Damba Mipentina
FishParetroplus maculatus
A rare Malagasy cichlid that rewards patient keepers with real personality.
Danford's killifish
FishAphanius danfordii
A rare Turkish killifish relative with fascinating behavior and real conservation value.
Danio Sp. Putao
FishCelestichthys flagrans
A rare northern Myanmar danio with fiery stripes and a slender build.
Dark Green Parrotfish
FishSparisoma viride
A reef sculptor that literally chews coral into Caribbean sand.

Dead Man's Fingers
CoralAlcyonium cydonium
A lumpy, lobed soft coral from cold northern seas, rarely seen in home systems.
Dead Men's Fingers
CoralAlcyonium digitatum
A cold-water soft coral that thrives where most reef animals won't.
Deepwater Sea Fan
CoralIciligorgia schrammi
A deepwater Atlantic sea fan that brings dramatic branching structure to the reef tank.
Delicate Blue-eye
FishPseudomugil tenellus
A tiny, peaceful Australian blue-eye that glows in a well-planted, sun-drenched tank.
Dense Carnation Coral
CoralDrifa glomerata
A cold-water soft coral that thrives where most reef species fear to go.