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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.
Guppy
The guppy (Poecilia reticulata) is a peacock-tailed livebearer from South American river basins—easy to keep, with hundreds of strains. Keep at 22–26 °C, pH 7.0–8.5, and feed a varied diet of flakes, brine shrimp and daphnia.
Giant Gourami
The Giant Gourami is native to the rivers and lakes of the Greater Sunda Islands in Southeast Asia, where it is an important food fish and is widely farmed, making it common throughout the region. It is very easy to keep—hardy, fast-growing, and capable of reaching a large size in a short period.
Parrotfish
The parrotfish (family Scaridae) is a brilliantly colored marine reef fish named for its beak-like mouth; adults reach 1.2 m. It likes warm, soft, acidic water and well-oxygenated tanks, and at night spins a mucus 'cocoon'.
Indonesian Tigerfish
The Indonesian tigerfish (Datnioides) is a nocturnal, elongated predator from Indonesia whose black stripes can darken unpredictably. Keep it at 28 °C in a bare tank with the light on to train it out of hiding.
Silver Arowana
The silver arowana (Osteoglossum bicirrhosum) is a large, dragon-shaped fish named for its silver scales; adults reach 90–100 cm. It needs a big covered tank, plenty of light, and a meat-based diet of shrimp, fish and insects.
Blood Parrot Cichlid
The blood parrot (a man-made cichlid hybrid, also called the God of Wealth fish) is vivid red and chubby, easy to keep, and sensitive to temperature swings. Keep it at 26–27 °C with red-enhancing pellets.
Red Arowana
The red arowana (Scleropages formosus) is a tropical freshwater dragon fish whose scales develop color in three phases—from yellow, to orange-red, to deep red. It needs a tank over 120 cm, full-spectrum light, and a meat-based diet.
Piranha
The piranha is a group of nearly 30 South American species (also called the water tiger fish), famous for sharp interlocking teeth and ferocious group hunting. Note: private keeping and release are discouraged in China due to ecological and safety risks.
Lionfish
Lionfish (Pterois), also called turkeyfish, is a popular ornamental marine fish with a distinctive fan-like pectoral fin. Its dorsal-fin spines are venomous—a sting causes severe pain and, in serious cases, fainting.