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Species

Browsing 1,508 species. Use the filters below to narrow down.

One-stripe Anthias

One-stripe Anthias

Fish

Pseudanthias fasciatus

A deep-reef anthias famous for swimming upside-down along cave ceilings.

One-stripe Spiny Eel

One-stripe Spiny Eel

Fish

Macrognathus aculeatus

A serpentine burrower with a single bold stripe and a secretive personality.

Oranda Goldfish

Oranda Goldfish

Fish

Carassius auratus var. oranda

The velvet-capped fancy goldfish that rewards patient, attentive keeping.

Orange Chromide

Orange Chromide

Fish

Etroplus maculatus

The only cichlid native to India, with a fascinating cleaning-fish side hustle.

Orange Cup Coral

Orange Cup Coral

Coral

Balanophyllia (Balanophyllia) elegans

A vivid cold-water coral that thrives in the shade where most corals fail.

Orange Cup Coral

Orange Cup Coral

Coral

Tubastraea columnata

A bold, non-photosynthetic coral that rewards patient target feeders with vivid blooms.

Orange Cup Coral

Orange Cup Coral

Coral

Tubastraea grandidentata

A non-photosynthetic branching coral that thrives in dim, current-swept reef spots.

Orange Encrusting Anemone

Orange Encrusting Anemone

Coral

Epizoanthus scotinus

A cold-water Pacific zoanthid that brings bold orange color to cooler reef tanks.

Orangefin Anemonefish

Orangefin Anemonefish

Fish

Amphiprion chrysopterus

A large, bold anemonefish from the wide Pacific with serious territorial attitude.

Orange-fin Barb

Orange-fin Barb

Fish

Barbus eutaenia

A sleek African barb from fast, rocky streams that rewards patient keepers.

Orangefin Tetra

Orangefin Tetra

Fish

Bryconops affinis

A restless, fast-moving shoaler from the Guiana Shield's coastal streams.

Orangestriped Triggerfish

Orangestriped Triggerfish

Fish

Balistapus undulatus

One of the reef's most aggressive personalities packed into a boldly patterned body.

Orange Sun Coral

Orange Sun Coral

Coral

Tubastraea megalostoma

A bold, non-photosynthetic coral that thrives in low light and rewards dedicated feeders.

Orange Sun Coral

Orange Sun Coral

Coral

Tubastraea ramosa

A brilliant non-photosynthetic branching coral that thrives in the dark.

Orange Tree Coral

Orange Tree Coral

Coral

Dendrophyllia ramea

A branching azooxanthellate coral that thrives in dim, current-swept Atlantic waters.

Orchid Dottyback

Orchid Dottyback

Fish

Pseudochromis fridmani

A bold little Red Sea endemic that punches well above its weight.

Orinoco Eartheater

Orinoco Eartheater

Fish

Biotodoma wavrini

A slender eartheater that thrives in groups and rewards patient, experienced keepers.

Ornate Bichir

Ornate Bichir

Fish

Polypterus ornatipinnis

An ancient, armored predator that breathes air and prowls the night.

Ornate Paradisefish

Ornate Paradisefish

Fish

Malpulutta kretseri

A rare Sri Lankan gem that deserves a species tank all to itself.

Ornate rainbowfish

Ornate rainbowfish

Fish

Rhadinocentrus ornatus

A tiny Australian rainbowfish from wild, tea-stained wallum streams.

Oscar

Oscar

Fish

Astronotus ocellatus

The cichlid that recognizes your face and rearranges its own tank.

Otocinclus

Otocinclus

Fish

Otocinclus vittatus

Tiny algae-grazing catfish that plasters itself to glass and plants alike.

Otocinclus Catfish (Tank-Bred)

Otocinclus Catfish (Tank-Bred)

Fish

Otocinclus macrospilus

The most commonly sold oto, fragile at first but rewarding once settled.

Otocinclus cocama

Otocinclus cocama

Fish

A tiny Peruvian algae grazer with bold, zebra-like blotches and a gentle disposition.

Oyapock Cory

Oyapock Cory

Fish

Corydoras condiscipulus

A long-lived Oyapock armored catfish that breathes air and blinks its eyes.

Pacific Double-saddle Butterflyfish

Pacific Double-saddle Butterflyfish

Fish

Chaetodon ulietensis

A boldly patterned butterflyfish that pairs for life in the wild.

Pacific Sea Fan

Pacific Sea Fan

Coral

Pacifigorgia dampieri

A bold Pacific sea fan that rewards patient, experienced reef keepers with high flow.

Painted Frogfish

Painted Frogfish

Fish

Antennarius pictus

A master of disguise that hunts with a built-in fishing rod.

Painted Sailfin Catfish

Painted Sailfin Catfish

Fish

Leiarius pictus

A majestic sailfin catfish only suited to those with truly enormous tanks.

Palauan Riffle Goby

Palauan Riffle Goby

Fish

Stiphodon pelewensis

A tiny riffle-dweller that vanishes into the sand when startled.

Palm Lettuce Coral

Palm Lettuce Coral

Coral

Pectinia paeonia

A sculptural reef coral that thrives where others struggle with murky water.

Palmqvist's Nothobranch

Palmqvist's Nothobranch

Fish

Nothobranchius palmqvisti

A brilliantly colored killifish that lives fast in seasonal African pools.

Panamanian Eartheater

Panamanian Eartheater

Fish

Geophagus crassilabris

A rare Panamanian cichlid with a reddish glow and fascinating sand-sifting habits.

Panda Barb

Panda Barb

Fish

Haludaria melanampyx

A lively hill-stream barb from India's Western Ghats with a two-tone shimmer.

Panda Clownfish

Panda Clownfish

Fish

Amphiprion polymnus

A boldly patterned clownfish with a preference for sandy, silty homes.

Panda Cory

Panda Cory

Fish

Corydoras panda

The panda-patterned cory that's as personable as it is peaceful.