Care Guides

The Watermelon Tetra (Hemigrammus coeruleus) is a rare blackwater species known for its unique green-to-red coloration and peaceful schooling behavior. While more expensive than common tetras, it rewards aquarists with stunning visuals in well-designed aquariums.

The Morse Code Tetra (Hemigrammus sp.) is a rare South American species known for its unique broken lateral line pattern resembling dots and dashes. Peaceful and easy to care for, it’s a great choice for aquarists looking for something different in a planted community tank.

The Sailfin Tetra (Crenuchus spilurus) is a subtle but rewarding species known for its dramatic dorsal fin displays in mature males. Best suited for natural, low-light aquariums, this fish offers unique behavior and a transformation that develops over time.

The Swordtail Tetra (Corynopoma riisei) is a unique and underrated species known for its elongated tail and fascinating courtship behavior. Easy to care for and full of personality, it’s a great addition to peaceful community aquariums.

The Green Line Lizard Tetra (Iguanodectes spilurus) is a rare, fast-swimming South American species known for its slender body and subtle green lateral stripe. Best kept in groups with plenty of swimming space, it brings unmatched energy and movement to aquarium setups.

Kyburz’s Glass Tetra (Pseudochalceus kyburzi) is a sleek and uncommon South American characin known for its elongated body and semi-transparent appearance. This active species thrives in aquariums with open swimming space and is a fascinating alternative to more common tetra species.

The Black Morpho Tetra (Poecilocharax weitzmani) is a rare Amazonian characin known for its deep black body and shimmering blue highlights. Unlike most tetras, this species displays fascinating cave-spawning behavior in which the male guards the eggs inside a small shelter.

The Bahia Black Diamond Tetra (Hyphessobrycon negodagua) is an uncommon tetra from coastal rivers in eastern Brazil. Known for its dark shimmering coloration and peaceful schooling behavior, this species thrives in planted aquariums with soft, slightly acidic water.

Montagu’s Tetra (Hyphessobrycon montagi) is an uncommon Amazonian tetra that thrives in planted aquariums with soft, slightly acidic water. This peaceful schooling fish is a great choice for aquarists who enjoy keeping rare characin species and creating natural South American aquarium setups.