dcsimg

Diseases and Parasites

provided by Fishbase
White spot Disease. Parasitic infestations (protozoa, worms, etc.)
license
cc-by-nc
copyright
FishBase
Recorder
Allan Palacio
original
visit source
partner site
Fishbase

Diseases and Parasites

provided by Fishbase
Fin Rot (early stage). Bacterial diseases
license
cc-by-nc
copyright
FishBase
Recorder
Allan Palacio
original
visit source
partner site
Fishbase

Diseases and Parasites

provided by Fishbase
Velvet Disease. Parasitic infestations (protozoa, worms, etc.)
license
cc-by-nc
copyright
FishBase
Recorder
Allan Palacio
original
visit source
partner site
Fishbase

Diseases and Parasites

provided by Fishbase
Ichthyobodo Infection. Parasitic infestations (protozoa, worms, etc.)
license
cc-by-nc
copyright
FishBase
Recorder
Allan Palacio
original
visit source
partner site
Fishbase

Diseases and Parasites

provided by Fishbase
Fin-rot Disease (late stage). Bacterial diseases
license
cc-by-nc
copyright
FishBase
Recorder
Allan Palacio
original
visit source
partner site
Fishbase

Diseases and Parasites

provided by Fishbase
Bacterial Infections (general). Bacterial diseases
license
cc-by-nc
copyright
FishBase
Recorder
Allan Palacio
original
visit source
partner site
Fishbase

Trophic Strategy

provided by Fishbase
Inhabits clear, cool, shady streams in forested areas, on gravel or sand substrate. Sometimes found in pools of quiet water in the margins of clear streams and rivers (Ref. 6471). Bred in captivity. Spawns in shallow water among marginal weeds. Feeds mainly on filamentous algae and detritus (Ref. 6703).
license
cc-by-nc
copyright
FishBase
Recorder
Drina Sta. Iglesia
original
visit source
partner site
Fishbase

Biology

provided by Fishbase
Inhabits clear, cool, shady streams in forested areas, on gravel or sand substrate. Sometimes found in pools of quiet water in the margins of clear streams and rivers (Ref. 6471). Bred in captivity. Spawns in shallow water among marginal weeds. Eggs (>100) hatch in 1-2 days; fry are free-swimming after 24 h (Ref. 6702). Feeds mainly on filamentous algae and detritus (Ref. 6703). Males brightly colored and with darker fins. Popular aquarium fish. Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 80 cm (Ref. 51539).
license
cc-by-nc
copyright
FishBase
Recorder
Tess Cruz
original
visit source
partner site
Fishbase

Importance

provided by Fishbase
fisheries: of no interest; aquarium: highly commercial
license
cc-by-nc
copyright
FishBase
Recorder
Tess Cruz
original
visit source
partner site
Fishbase

Black ruby barb

provided by wikipedia EN

The black ruby barb (Pethia nigrofasciata, formerly Puntius nigrofasciatus) or purplehead barb is a tropical cyprinid fish endemic to Sri Lanka, where it occurs in forested streams from the Kelani basin to the Nilwala basin. They are found in streams on hills around 1000 ft (300 m) in elevation. The brightly colored population introduced to Mahaweli at Ginigathena, Sri Lanka, is said to have diminished in number due to the aquarium export trade.[2][3]

Description

The young fish has a yellowish-gray body with black vertical stripes. The silver body turns into a dark ruby-red color in mature, breeding males. In the female, the basal part of all the vertical fins is black. In the male, the whole dorsal fin is a deep black, the anal fin blackish red, and the pelvic fins are purple. The fish will grow to a maximum length of 2–3 inches (6–8 centimeters) with the female being slightly longer than the male.

Water conditions

Black ruby barbs natively live in a tropical climate among cool, shady, quietly flowing forested streams with either gravel or sand substrates. Their diet mainly consists of filamentous algae and detritus. They prefer water with a 6.0–6.5 pH, a water hardness of 5–12 dGH, and a temperature range of 72–79 °F (22–26 °C).

Commercial importance

The fish has commercial importance in the aquarium hobby, and is successfully bred in captivity. They are also used to create hybrid forms of "odessa barbs" for the aquarium trade.

Breeding

An egg-scatterer, the fish spawn more than 100 eggs in shallow water among the plants. The eggs hatch in one to two days and then will be free-swimming after 24 hours.

In the aquarium

Plenty of room should be provided for this fish, with plenty of light and a shallow covering of floating plants and ample vegetation (half to two-thirds of the tank area). A layer of humus should be left on the bottom. This species is good for keeping with other barbs and similar fish. In captivity, the fish are omnivorous, with a healthy appetite.

The black ruby barb is an active swimmer that is best kept in schools of at least six.

See also

References

  1. ^ de Alwis Goonatilake, S.; Fernado, M.; Kotagama, O. (2019). "Pethia nigrofasciata". IUCN Red List of Threatened Species. 2019: e.T18895A174840894. doi:10.2305/IUCN.UK.2019-3.RLTS.T18895A174840894.en. Retrieved 20 November 2021.
  2. ^ Pethiyagoda, R., Meegaskumbura, M. & Maduwage, K. (2012): A synopsis of the South Asian fishes referred to Puntius (Pisces: Cyprinidae). Ichthyological Exploration of Freshwaters, 23 (1): 69–95.
  3. ^ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Pethia nigrofasciata" in FishBase. April 2013 version.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Black ruby barb: Brief Summary

provided by wikipedia EN

The black ruby barb (Pethia nigrofasciata, formerly Puntius nigrofasciatus) or purplehead barb is a tropical cyprinid fish endemic to Sri Lanka, where it occurs in forested streams from the Kelani basin to the Nilwala basin. They are found in streams on hills around 1000 ft (300 m) in elevation. The brightly colored population introduced to Mahaweli at Ginigathena, Sri Lanka, is said to have diminished in number due to the aquarium export trade.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN