Aquarium Fish ∣ Detailed Guides to Choosing & Caring for Nano Species

Hailing from the slow-moving, tannin-stained waters of the Amazon basin, the Carbuncle Tetra (Hemigrammus pulcher) is a peaceful and captivating schooling fish. Also known as the Garnet Tetra, its str...

The Butterfly Rainbowfish, native to the coastal streams of Eastern Australia, is a captivating nano fish prized for its striking blue eyes and elegant, butterfly-like fins. Known for their energetic ...

The Black Ghost Knifefish, scientifically known as Apteronotus albifrons, is a mesmerizing nocturnal species native to the Amazon Basin. Renowned for its unique, undulating swimming style and striking...

The Gold Barb, a stunning captive-bred variant of the Chinese Barb, is a highly popular and active schooling fish. Known for their brilliant golden-yellow coloration and peaceful nature, they are exce...

The Brocade Barb, widely recognized by its captive-bred golden variant, is a hardy and active schooling fish native to Southeast Asia. With their peaceful demeanor and striking metallic coloration, th...

The Brilliant Tetra, widely known as the Diamond Tetra (Moenkhausia pittieri), is a stunning freshwater fish celebrated for its iridescent, jewel-like scales. Native to Venezuela, this active and peac...

The Brazilian Cherry Spotted Tetra (Hyphessobrycon socolofi) is a captivating freshwater fish prized for its striking bright red flank spot and peaceful demeanor. Native to South American river basins...

The Blue Rainbowfish, endemic to Lake Kutubu in Papua New Guinea, is celebrated for its stunning, shifting blue and turquoise hues. This peaceful, active schooling fish is highly sought after by aquar...

The Blue Peru Tetra (Knodus borki) is a stunning, highly active schooling fish native to the Peruvian Amazon. Known for its brilliant iridescent blue lateral stripe, this peaceful yet energetic specie...

Originating from the blackwater streams of the Orinoco and Negro rivers, the Blue Neon Tetra is a captivating schooling fish. Highly popular among aquascapers, its brilliant, continuous blue-green iri...

The Blue Black Banded Tetra (Hyphessobrycon melanostichos), often called the Lapis Tetra, is a striking addition to the aquarium hobby. Originating from Brazil's Rio Tapajós basin, this peaceful schoo...

Originating from the lush Amazon basin, the Extra Red Blood Tetra is a remarkably striking, active schooling fish. Known for its intensely deep crimson coloration and playful energy, this hardy specie...

Originating from the slow-moving, tannin-stained waters of South America, the Blood Tail Tetra is a peaceful and active schooling fish. Known for its striking red caudal peduncle and distinct black hu...

The Blind Cave Tetra is a fascinating oddball fish that has evolved without eyes or pigmentation to survive in pitch-black subterranean caves. Relying on an advanced lateral line system to navigate an...

Chilatherina bleheri, commonly known as Bleher's Rainbowfish, is a stunning freshwater species native to Lake Holmes in Papua, Indonesia. Known for its striking split coloration—featuring a greenish-b...

The Truncate Harlequin Rasbora, often referred to as the Blaustrich Keilfleckbarbe, is a captivating and peaceful schooling fish native to Southeast Asia. Known for its distinct black wedge-shaped mar...