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Species

Browsing 707 species. Use the filters below to narrow down.

Ninja shrimp

Ninja shrimp

Invert

Caridina serratirostris

A color-shifting freshwater shrimp that can vanish right before your eyes.

Norman's Lampeye

Norman's Lampeye

Fish

Poropanchax normani

Tiny West African killifish with glowing blue eyes that shimmer in low light.

Northern longsnose cory

Northern longsnose cory

Fish

Corydoras septentrionalis

A long-lived Orinoco bottom-dweller that breathes air and blinks at you.

Northern Rainbowfish

Northern Rainbowfish

Fish

Melanotaenia affinis

One of the first rainbowfish in the hobby, now available in several wild forms.

Okinawa Goby

Okinawa Goby

Fish

Gobiodon okinawae

Tiny, vivid, and inseparable from its Acropora home.

Olga

Olga

Fish

Corydoras simulatus

A rarely documented Colombian cory with a color pattern that keeps even experts guessing.

Olive danio

Olive danio

Fish

Danio dangila

A large, active danio with impressively long barbels and a rarely seen wild side.

One-lined Pencilfish

One-lined Pencilfish

Fish

Nannostomus unifasciatus

A tiny pencilfish that swims at a permanent angle, day and night.

Oneline Tetra

Oneline Tetra

Fish

Nannaethiops unitaeniatus

A peaceful little African schooler that deserves far more attention than it gets.

One-stripe Anthias

One-stripe Anthias

Fish

Pseudanthias fasciatus

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

Oranda Goldfish

Oranda Goldfish

Fish

Carassius auratus var. oranda

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

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.

Orinoco Tetra

Orinoco Tetra

Fish

Hemigrammus barrigonae

A rare Orinoco tetra that rewards patient keepers willing to seek it out.

Ornate Corydoras

Ornate Corydoras

Fish

Corydoras ornatus

A long-lived Tapajós bottom-dweller that thrives in sociable, peaceful groups.

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.

Otocinclus

Otocinclus

Fish

Otocinclus vittatus

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

Otocinclus affinis

Otocinclus affinis

Fish

Macrotocinclus affinis

Tiny Brazilian algae-eater with a habit of resting right on the front glass.

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.

Pacific Seahorse

Pacific Seahorse

Fish

Hippocampus procerus

A tall-crowned Pacific seahorse that rewards patient, attentive keepers.

Palauan Riffle Goby

Palauan Riffle Goby

Fish

Stiphodon pelewensis

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

Palespotted Corydoras

Palespotted Corydoras

Fish

Corydoras gossei

A long-lived, peaceful bottom dweller that breathes air and blinks its eyes.

Panda Barb

Panda Barb

Fish

Haludaria melanampyx

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

Panda Cory

Panda Cory

Fish

Corydoras panda

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

Panda Garra

Panda Garra

Fish

Garra flavatra

A boldly patterned Burmese stream fish that's part algae grazer, part personality.

Pangio Loach

Pangio Loach

Fish

Pangio pangia

A slender, burrowing loach from South Asian slow waters, peaceful and endlessly curious.

Pangusia Labeo

Pangusia Labeo

Fish

Labeo pangusia

A large, fast-water river fish that earns its keep as an algae grazer.

Panther Loach

Panther Loach

Fish

Acanthocobitis pavonacea

A boldly patterned loach from northeast India that rarely appears in the trade.

Papuan Rainbowfish

Papuan Rainbowfish

Fish

Melanotaenia papuae

A compact rainbowfish from Port Moresby's jungle streams, peaceful and full of personality.

Parkinson's Rainbowfish

Parkinson's Rainbowfish

Fish

Melanotaenia parkinsoni

A Papua New Guinea gem that rewards patient keepers with spectacular adult color.

Pastaza Corydora

Pastaza Corydora

Fish

Corydoras pastazensis

A long-lived Ecuadorian armored catfish with a fascinating air-breathing trick.