Flora & Fauna
673 entries — care guides, placement tips, and notes from the community
Banggai Cardinalfish
Pterapogon kauderni
Elegant black-and-silver with distinctive elongated fins and bold stripes. A mouthbrooder — the male incubates eggs in his mouth until hatching. One of the few marine fish regularly bred in home aquaria.
Blue Tang
Paracanthurus hepatus
Striking royal blue fish with a yellow tail. Active swimmer requiring large tanks. Prone to ich, so quarantine is recommended.
Coral Beauty Angelfish
Centropyge bispinosa
Deep blue body with orange-yellow sides and purple highlights. Hardiest of the dwarf angels. Generally reef-safe but may nip soft corals.
Emperor Angelfish
Pomacanthus imperator
Majestic large angelfish with electric blue-and-yellow horizontal stripes. Juveniles are black with white rings. Not reef-safe. Requires expert care and very large tanks.
Firefish Goby
Nemateleotris magnifica
Elegant dartfish with a fiery orange-red tail and white-to-yellow body. Shy but beautiful. Tends to jump so a tight-fitting lid is essential.
Flame Angelfish
Centropyge loricula
Vivid red-orange dwarf angelfish with black vertical bars. One of the most popular dwarf angels. May nip at corals; monitor in reef tanks.
Flame Hawkfish
Neocirrhites armatus
Vivid red with black dorsal markings and outline — perches atop gorgonians and Acropora waiting to ambush prey. Completely reef-safe with corals but will eat small shrimp. Charismatic and bold.
Foxface Rabbitfish
Siganus vulpinus
Bold yellow body with intricate brown-and-white facial patterning. Has venomous spines so handle carefully. Outstanding algae and nuisance weed grazer.
Green Chromis
Chromis viridis
The quintessential schooling reef fish — shimmering apple-green in open water above Acropora. Incredibly hardy and peaceful. Best kept in groups of 6+ for the most natural look.
Harlequin Tusk
Choerodon fasciatus
Bold orange-and-white banded wrasse with vivid blue teeth. Impressive predator fish for FOWLR tanks. Australian specimens (red-orange) are more vibrant than Indo-Pacific.
Kole Tang
Ctenochaetus strigosus
Brown tang covered with fine yellow-orange spots. Excellent detritivore and algae grazer. More peaceful and compact than most tangs. Great reef fish.
Lawnmower Blenny
Salarias fasciatus
The go-to algae control fish for reef tanks — relentlessly grazes film algae and hair algae off rocks and glass. Camouflaged brown-grey with warty skin and charismatic perching behaviour.
Longnose Hawkfish
Oxycirrhites typus
Instantly recognisable by its elongated snout and white body with red grid pattern. Perches in gorgonian sea fans and black coral, propping itself on its fins. Bold and long-lived in captivity.
Lubbock's Fairy Wrasse
Cirrhilabrus lubbocki
Strikingly colourful — males flash vivid red, orange, and yellow with iridescent highlights during display. Peaceful and active; best kept as one male with several females. A jewel of the mid-water column.
Lyretail Anthias
Pseudanthias squamipinnis
One of the most colourful reef fish — females orange-pink, males dazzling magenta-purple with elongated tail filaments. Best kept in a harem (one male, multiple females) with strong flow and frequent feeding.
Mandarin Dragonet
Synchiropus splendidus
Arguably the most beautiful fish in the hobby. Requires a mature reef with abundant copepods. Not for beginners. Will starve if not given live food.
Maroon Clownfish
Premnas biaculeatus
The largest clownfish species, maroon-red with bold white stripes. Highly aggressive — best kept as a single specimen or bonded pair. One of the most striking reef fish available.
Melanurus Wrasse
Halichoeres melanurus
Dazzling rainbow colouration — females green-blue, males sporting a vivid magenta-and-green pattern. A sand-diver that buries to sleep. Natural predator of flatworms and pyramid snails.
Midas Blenny
Ecsenius midas
Brilliant golden-yellow with a flowing, eel-like body. Often mimics Lyretail Anthias in colour. Perches on rockwork and darts into crevices when startled — reef-safe and entertaining to watch.
Mystery Wrasse
Pseudocheilinus ocellatus
Rare and stunning — white with bold yellow-outlined spots and red-tipped fins. A cryptic wrasse that stays hidden in the rockwork. Highly sought-after collector fish that commands a premium.
Naso Tang
Naso lituratus
Elegant tang with a characteristic orange-tipped rostrum, blue-trimmed fins, and long tail streamers in mature males. A graceful, active swimmer that needs a large tank. Excellent algae control.
Neon Goby
Elacatinus oceanops
Tiny electric-blue-striped goby renowned as a cleaner fish — will pick parasites from larger tank mates. Ideal for nano reefs. The Caribbean's answer to the cleaner wrasse.
Ocellaris Clownfish
Amphiprion ocellaris
The iconic clownfish made famous by Finding Nemo. Hardy, peaceful, and symbiotic with anemones. Excellent beginner saltwater fish.
Orchid Dottyback
Pseudochromis fridmani
Vivid orchid-purple throughout — one of the most coveted nano reef fish. A Red Sea endemic that is now tank-bred widely. Bold personality for its size; can be aggressive to smaller fish.
Pajama Cardinalfish
Sphaeramia nematoptera
Unmistakable with its yellow head, dark mid-band and polka-dotted orange rear — like a fish in pyjamas. Nocturnal schooler that hovers in groups near branching corals. Very peaceful and reef-safe.
Pink Skunk Clownfish
Amphiprion perideraion
Pale pink-orange with a single white dorsal stripe and cheek bar. One of the smallest and most peaceful clownfish — ideal for nano reef tanks alongside Magnificent Anemones.
Porcupine Puffer
Diodon holocanthus
Endearing and personable puffer with large eyes and a round body covered in spines. Will eat inverts — FOWLR only. Develops a real personality and recognises its keeper.
Powder Blue Tang
Acanthurus leucosternon
One of the most beautiful tangs with a powder-blue body, yellow dorsal fin and black mask. Prone to ich and disease — best for experienced reef keepers.
Purple Firefish
Nemateleotris decora
One of the most visually striking nano reef fish — white to yellow body fading into vivid purple-magenta. Peaceful and reef-safe; will jump, so a tight lid is essential.
Purple Tang
Zebrasoma xanthurum
Deep violet-purple with a bright yellow tail — one of the most desired tang species. A Red Sea endemic, now tank-raised. Aggressive toward other tangs so introduce with care.
Regal Angelfish
Pygoplites diacanthus
Breathtakingly beautiful with alternating white-and-orange bars. Notoriously difficult to feed in captivity. Red Sea specimens generally adapt better than Pacific ones.
Royal Gramma
Gramma loreto
Arguably the most striking Caribbean reef fish — front half vivid purple, rear half bright yellow. Hardy, peaceful, and reef-safe. Tends to hang upside-down under ledges mimicking its cave habitat.
Scissortail Dartfish
Ptereleotris evides
Slender, schooling dartfish with a distinctive forked tail and blue-grey body. Best kept in pairs or small groups; will share a burrow. Reef-safe and active in the mid-water column.
Scopas Tang
Zebrasoma scopas
Elegant, understated tang ranging from brown to blue-grey with fine markings. Peaceful and hardy. Excellent algae grazer and reef-safe.
Six Line Wrasse
Pseudocheilinus hexataenia
Active and colourful wrasse with six horizontal blue stripes. Pest controller — eats flatworms and small pests. Can be territorial with similar species.
Snowflake Moray
Echidna nebulosa
Spectacular black-and-white patterned eel. One of the most reef-compatible morays as it eats crustaceans rather than fish. Needs a very secure lid.