Despite the relatively uniform water chemistry of its various habitats, the harlequin rasbora is an adaptable fish in the aquarium, provided that migration of the fishes to waters of differing chemical parameters is conducted with due care.
22.
The conditions thus resemble those found on a different continent, namely the blackwater habitats of South America, and the water chemistry of the Asian habitats of the harlequin rasbora is accordingly similar to that of the Rio Negro.
23.
Like other rasboras, the eye-spot rasbora is a shoaling fish, and should be maintained in the aquarium as a group consisting of a minimum of 6 individuals, a larger number being preferable if space permits.
24.
The "'blackline rasbora "'( " Rasbora borapetensis " ) is a fish of the family Cyprinidae found in Asia in the Mekong, Chao Phraya, and Mae Klong basins, and also the northern Malay Peninsula.
25.
The "'blackline rasbora "'( " Rasbora borapetensis " ) is a fish of the family Cyprinidae found in Asia in the Mekong, Chao Phraya, and Mae Klong basins, and also the northern Malay Peninsula.
26.
Feeding the harlequin rasbora presents no problems to the aquarist, as the fish enthusiastically accepts prepared foods, though for best health, a variety of these should be given, preferably interspersed with feedings of live foods such as " Daphnia ".
27.
An aquarium intended to house harlequin rasboras should be planted with live plants, with some open areas for swimming provided between stands of plants such as " Cryptocoryne " species, these being among the plants that inhabit the harlequin rasbora's native waters.
28.
In older literature they are therefore referred to as members of " Rasbora " and following Liao et al . ( 2010 ) the genus is a member of the rasborin sub-group within the subfamily Danioninae ( the other sub-group contains the danionins ).
29.
The harlequin rasbora is a fish that has an approximately lozenge-shaped body, whose basal colour from the head to the caudal peduncle is an orange-pink, the exact hue varying depending upon such factors as water conditions and the original population from which the fish was obtained.
30.
"Boraras " is an anagram of Rasbora ( a generic term for the group that includes this species ), highlighting the reversal of the ratio of abdominal and caudal vertebrae in this species . " Merah " is the Indonesian word for red due to its body colour.
