- Scientific name: Sahyadria denisonii
- Synonyms: Puntius denisonii, Barbus denisonii, Crossocheilus denisonii, Labeo denisonii
- Common name: Denison barb ,Red-line torpedo barb, Denisoni barb, Denison's flying fox, Rose line shark, Bleeding eye barb
- Group: Cyprinids
- Habitat: Asia; West India
- Size: 15 cm
- Biotope: Fast flowing mountainous streams and rivers with highly oxygenated water.
- Social behavior: A generally peaceful and active shoaling fish. Can be kept in a biotope aquarium with danios which like similar conditions. They can be aggressive if kept in too small group.
- Diet: Omnivorous; in nature they eat insects, invertebrates and also alage. In the aquarium give them small live and frozen foods, and quality dried foods and vegetables.
- Breeding: Very rare in aquarium
- Tank: Minimum 300 litres
- Population: 6 fish for 300 litres
- Decoration: Use a sand or gravel substrate with some larger smooth rocks. They prefer cooler temperatures, and use a powerhead to provide water-flow and well oxygenated water. They also prefer a densely planted tank as well. Cover their tank, as they are good jumpers. Decorate the aquarium with some bogwood. You can attach Java moss or Anubias to the wood.
- Temperature: 20-26 °C
- pH: 6.8-7.8
- Hardness: 5-25 NK°
- Lifespan: 5-8 years
Description: This barb is one of the most beautiful fish in the family. The fish has a torpedo-shaped body. The base color of Red-line torpedo barb’s body is silver, and has a black line running from the nose to the base of the forked tail. There is a bright red lateral band above the black line, from the nose to the mid section of the body. As they mature, the top of the body become more green. The caudal fin is forked and tipped in black and yellow. The first rays of the dorsal fin are also red, but the rest of the fins are translucent. It’s hard to tell the difference between sexes, but mature females have rounder bellies, while the males are slimmer.
Due to over-collecting for the pet trade this fish is now becoming increasingly endangered in the wild. There are very few reports of breeding in aquaria, but commercial breeding is occurring, presumably with hormone injections. Some reports say that the fish have spawned in a large group, in soft (gH 2-3), acidic water (pH 5.7), where they deposited the eggs in Java moss. The spawning appeared to be triggered by a gradual lowering of the pH in the tank.
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