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267 results for “aquarium”

Golden Arowana
The Golden Arowana is an ancient, gold-scaled Asian arowana kept as a feng-shui 'underwater overlord.' Fiercely territorial and best kept alone in a covered tank at 28°C, it lives 10–20 years; slow growth builds the densest, brightest gold sheen, fed on small fish and shrimp rather than insects.

Neon Tetra
The Neon Tetra is a tiny, peaceful characin from the Amazon basin, famous for its iridescent blue stripe over a red one that shimmers as it schools through a planted tank. Easy to keep in dim, acidic soft water at 22–24°C, it lives 1–2 years and is sensitive to sudden water changes.

Black Arowana
The Black Arowana is a South American freshwater predator from the Amazon and Guyana, born with two long barbels and flowing fins. Aggressive and best kept alone in a covered tank over 120 cm, it needs 24–28°C soft water and a meaty diet of live foods. Watch for white spot and tail rot.

Malayan Golden Arawana
The Malayan Golden Arawana (Crossback Golden Arowana) is a prized Asian arowana from the Malay Peninsula whose gold scale frames extend all the way up the back. A large, skittish carnivorous fish, it needs a quiet, covered tank over 120 cm long and a meaty diet of live foods.

Oscar
The Oscar (Astronotus ocellatus) is a large, personable cichlid from the Amazon basin that can learn to recognize its owner and even leap for food from the hand. A voracious carnivorous predator — it will fight or eat tankmates — it needs a big tank and, despite its thuggish nature, is one of the most interactive tropical fish you can keep. It can live 10 years or more.

Taisho Sanshoku
Taisho Sanshoku, commonly called Sanke, is one of the two representative koi varieties alongside Kohaku. Bred in Japan during the Taisho era (around 1915), it is a red-white-black tricolor koi whose appeal lies in the placement and quality of its black sumi markings over a pure white-and-red body. Its care is the same as for any koi.

Giant Pangasius
The Giant Pangasius (Pangasius sanitwongsei), also called the Genghis Khan Fish or Paroon Shark, is a large, fast, predatory catfish from the Mekong and Chao Phraya basins. Reaching well over a meter, it needs a very large tank and must be kept only with similarly sized fish — it will swallow much smaller tankmates. Hardy and easy to keep, but sensitive to cold.

Cardinal Tetra
The cardinal tetra (Paracheirodon axelrodi) is a small South American characin with a glowing blue-green stripe and red lower body. A peaceful schooling fish, it needs soft acidic water at 24–26 °C and dim light.

Goldfish
The goldfish (Carassius auratus), native to China, is the world's oldest ornamental fish with more than 125 varieties. This guide covers its taxonomy, body and head shapes, care, tank environment, and feeding.

Arowana
Arowana are large freshwater bony-tongue fish (family Osteoglossidae) prized worldwide as ornamental and feng shui fish. This guide covers their varieties, appearance, care, ideal environment, and feeding.