Cyprinidae: Goldfish, Koi and Their Relatives
Carps and minnows β goldfish, koi, danios. The largest fish family.
Carassius auratus β Goldfish
Carassius auratus, the goldfish, domesticated from the Prussian carp. Covers its cold-water physiology, recognised varieties, digestive anatomy and pond or tank husbandry.
Cyprinus carpio β Koi
Cyprinus carpio, the common carp and ancestor of ornamental koi. Covers the species biology, global distribution, and pond husbandry requirements.
Danio rerio β Zebrafish
Discover Danio rerio, the zebrafishβa tiny freshwater species vital to biomedical research and a resilient aquarium favorite. Explore its scientific significanc
Puntius titteya β Cherry Barb
Discover the cherry barb, Puntius titteya, a peaceful Sri Lankan cyprinid ideal for planted tanks. Learn its habitat, care, tank mates, breeding, and diet needs
Boraras brigittae β Chili Rasbora
Discover the chili rasbora (Boraras brigittae), one of the smallest and most striking freshwater nano fish. Learn its care, tank setup, diet, and tank mates.
Cyprinus carpio β Koi
Discover Cyprinus carpio, the wild ancestor of ornamental koi, a hardy freshwater species shaping aquaculture and global ecosystems for centuries.
Trigonostigma espei β Lambchop Rasbora
Discover the Lambchop Rasbora (Trigonostigma espei), a peaceful Southeast Asian cyprinid ideal for planted nano tanks. Learn its care, tank mates, diet, and hab
Tanichthys albonubes β White Cloud Mountain Minnow
Discover the White Cloud Mountain Minnow (Tanichthys albonubes): a hardy cold-water community fish that's critically endangered in the wild. Care, history, and
Epalzeorhynchos bicolor β Red-Tailed Black Shark
Discover the Epalzeorhynchos bicolor, or red-tailed black shark: a Southeast Asian freshwater cyprinid that isn't a true shark. Learn its origins, traits, and c
Epalzeorhynchos frenatum β Rainbow Shark
Rainbow Shark (Epalzeorhynchos frenatum) care guide: tank size, diet, tank mates, and why this Southeast Asian cyprinid is territorial despite its name.