Bago

The dwarf spotted danio, Danio nigrofasciatus, is a small cyprinid endemic to central Myanmar, on both sides of the Bago Yoma range. It inhabits streams, minor rivers, ponds, ditches and rice paddies, many of them seasonal. A spotted anal-fin separates it most easily from similar species such as D. rerio and D. kyathit. Very peaceful but rather timid, it does best alone or with similarly sized species that enjoy similar conditions.

The silver tiger perch, Datnioides polota, is a tiger perch widely distributed in southeastern Asia, from India and Bangladesh east to Indonesia. Mostly found in brackish habitats such as estuaries, mangroves and coastal lagoons, it has a highly variable colour pattern with up to 7 dark bars. The name D. quadrifasciatus is sometimes applied to it, but that name is a junior homonym and polota takes precedence.

The 'freshwater' moray eel, Gymnothorax tile, is a moray from coastal regions of the Indo-West Pacific, from eastern India to the Philippines. Although typically sold as a freshwater fish, this is not strictly the case, and the profile treats a marine salt mix as mandatory. It has small pale spots on a darker head and body, where the congener G. polyuranodon has much larger dark spots on a paler background. Highly piscivorous, it is best kept alone in all but the very largest aquaria.

Microdevario gatesi is a miniature cyprinid from the lower Irrawaddy basin in Myanmar, growing to around 23 mm SL. Uncommon in the aquarium hobby, it is sometimes traded as 'Burmese golden rasbora' and can be told from its congeners by its hyaline dorsal and anal fins. It is likely to inhabit sluggish and standing waters such as rice paddies, swamps and weedy ditches, and is possibly endemic to the Irrawaddy Delta.

Microdevario nanus is a miniature cyprinid from the lower Sittaung and Bago drainages of the Irrawaddy system in Myanmar. Sometimes referred to as 'green dwarf rasbora' or 'nana rasbora' in the ornamental trade, it grows to around 16 mm SL. A black blotch at the tip of the dorsal fin and a greyish marking at the tip of the anal fin immediately distinguish it from congeners.

The swamp barb, Puntius chola, is a cyprinid from much of Pakistan, India, Nepal, Bhutan, Bangladesh, Sri Lanka, Myanmar and western Thailand. Sometimes called the 'chola' or 'green' barb, it has a single pair of barbels and dark blotches behind the operculum and near the caudal-fin base. It apparently prefers stiller waters over mud or silt, and makes an ideal addition to a peaceful community of riverine fishes.

The freshwater needlefish, Xenentodon cancila, is a belonid from Pakistan east through India, Bangladesh, Nepal, Sri Lanka, Myanmar and Thailand. Often called 'freshwater garfish', it only superficially resembles the true gars, and most of its relatives in the Belonidae are marine or estuarine. A near-exclusive inhabitant of the upper water column, it is surprisingly peaceful with anything too large to swallow and is best kept in numbers of four or more, in a tank of 180 ∗ 60 cm or more.

Esomus caudiocellatus is a cyprinid from Myanmar, collected from the Salween river system in the east of the country and in northwestern Thailand. It lacks the dark lateral stripe of its congeners and has a prominent dark marking on the caudal peduncle. Like other Esomus it has greatly enlarged pectoral fins and very long maxillary barbels. Some hobbyists have recorded a wasting disease in Esomus spp. that usually kills within a couple of weeks.

Hemibagrus peguensis is a bagrid catfish from the Irrawaddy, Bago and Sittaung drainages of Myanmar and the Chindwin basin in northeastern India. Sometimes referred to as 'Sittang mystus', it has been widely confused with H. menoda in the past and seems virtually unknown in the aquarium hobby. It grows to 286 mm SL and can be told from H. menoda by its almost truncate snout.