Order Cypriniformes ( Cypriniformes )
Family Cyprinidae ( Cyprinidae )
Subfamily Rasborinae ( Rasborinae )
Genus Rasbora — Rasbora.
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— Greater Scissortail — Rasbora caudimaculata [Volz, 1903]. Synonym: Rasbora dorsimaculata. (Eng. Greater Scissortail, Red Scissortail). Thailand, Malaysia, Indonesia, Sumatra. 15 cm. The streamlined body contours and powerful fins indicate that this rasbora is an excellent swimmer, a master of speed and maneuver. The fish’s body gleams with silver, and at a certain angle of light incidence, it shimmers with all the colors of the rainbow. Their back is brownish-red, sides yellowish-red, belly yellowish, the entire body with a purple tint. On the front part of the body, behind the gill covers, there is a black spot on each side, with smaller spots at the base of the anal and caudal fins.
The lobes of the caudal fin have an orange to red zone in the middle, turning black towards the tips. Characteristic golden-ochre spots are present on both lobes of the fork-tailed fin, before its black termination. The male is slimmer with a yellowish anal fin, the tips of the caudal fin lobes are white. Females are fuller, with lower color intensity.
A very active, peaceful schooling fish. Suitable for keeping in large, planted community aquariums with sufficient swimming space. The space near the front glass is best left entirely free of decorations. Any non-aggressive inhabitants of tropical waters will make good neighbors for rasboras. When keeping them, the aquarium must be tightly covered — these fish are excellent jumpers. They swim in the upper and middle water levels. Even in medium-sized aquariums, they grow quite slowly. The fish have an excellent appetite and require a fasting day. pH 6.0-6.5; dH up to 10°; T 22-26°C.
— Two-stripe rasbora — Rasbora cephalotaenia [Bleeker, 1852]. Synonym: Rasbora tornieri, Leuciscus cephalotaenia. Thailand, Western Borneo, eastern Sumatra. 10-12 cm. Males are slimmer than females. Easily distinguished from similar species R. einthovenii and R. jacobsoni by examining the dark lateral stripe. In R. cephalotaenia, it consists of a series of dark spots, whereas in other species it forms a continuous solid line.
A large aquarium with dense vegetation and an open area in the center for swimming. Soft, sandy substrate, a few roots of driftwood and branches can be added, arranged in such a way as to create many shady spots. It is good to put beech, oak, or almond leaves on the bottom, which brings about the growth of microbial colonies that can become a valuable secondary food source for fry, and they also contain tannin, which is beneficial for these fish. An active species, keep in a group of six or more individuals. The fish displays its best coloration in the presence of conspecifics.
Jumpy, a cover glass is mandatory. Peaceful, tank mates should be of a similar size. Diffused lighting with floating plants is necessary. Water should be soft and slightly acidic. Good filtration and regular water changes are required. Do not introduce this fish into a biologically immature aquarium; they are susceptible to fluctuations in water chemistry. An omnivorous fish, feed live and frozen foods, as well as dry flakes and pellets. Spawns among fine-leaved plants. pH 6.0-7.0; dH 10-15°; T 22-25°C.
— Slender rasbora, Black Line Rasbora — Rasbora daniconius [Hamilton, 1822]. Synonym: Rasbora daviconius, malabarica, neilgherriensis, palustris, woolaree, zanzibarensis. (Eng. Black Line Rasbora, Gold Line Rasbora, Striped Rasbora, Slender Rasbora). India, Myanmar, Thailand, Sri Lanka. 15 cm, in aquarium up to 10 cm. The body is elongated, slender, laterally compressed. The main coloration is silvery, with an intense pearlescent gloss and bluish tint on the sides, the back is olive-brown with a bronze tint. The belly is silvery in females and yellowish or reddish in males.
A dark blue stripe runs from the gill covers to the base of the caudal fin, with narrow bright golden stripes above and below it. Narrow dark spots above the anal fin. Scales are large and highly reflective. Fins are colorless in females, yellowish to orange in males. The male is slimmer, better colored. The female has a more curved belly profile. Subspecies — R. daniconius labiosa differs in thicker lips and smaller size (no more than 6 cm).
A schooling fish, at least 6 specimens can be kept in a general, tightly covered aquarium. They stay in the upper (preferred) and middle water layers. Sufficient swimming space and dense patches of long-stemmed plants in places are necessary. Compatible with large fish, suffers from aggressive fish.
Suitable for keeping with other fish species that are somewhat feisty, robust, and fast, but not aggressive. Also good companions for small loaches or labyrinth fish. Sudden fluctuations in water quality make this fish weak and prone to disease. Omnivorous, a good balance of dry and live food is required for optimal health. They live up to 5 years. T 23-25°C; dH 4-12°; pH 6.0-7.2.
— Yellowtail rasbora — Rasbora dusonensis [Bleeker, 1851]. Synonym: Rasbora myersi. Thailand, Laos, Malacca, Borneo, Sumatra. 12 cm. Sides are dark grey, with a more intense color in the rear part. There are 3 stripes. Sexual dimorphism is not obvious, although males are slenderer. Keep in a school, in a community aquarium with dense vegetation, stays in the upper water layers. pH 5.3-6.0; dH up to 8°; T 23-26°C.
Rasbora einthovenii, elegans, kalochroma, lacrimula, meinkeni.
Rasbora argyrotaenia, Rasbora borapetensis. 
