Fish, Tanks and Ponds


Fish, Tanks and Ponds
A comprehensive guide to fish

Oreichthys crenuchoides

Drape finned barb

Drape finned barb, Oreichthys crenuchoidesDrape finned barb, Oreichthys crenuchoides
Photos by Andy Rapson

Etymology:

Oreichthys: Latin, aurum = gold + Greek, ichthys = fish

General Notes:

Set up their aquarium with sandy substrate and include bog wood, leaves, plants including floating plants if possible for decor.
Oreichthys crenuchoides
, is a delicate peaceful species which prefers cool conditions with a maximum of temp of 24°C (76°F) Aeration is recommended to help to maintain high levels of oxygen in their water. Avoid extremes of pH and aim for fairly neutral conditions with a little leeway either side of pH 7.
Oreichthys crenuchoides are quite timid but will settle down faster and become bolder if kept in a large group with other small peaceful species.
Avoid making large water changes but make more frequent but smaller water changes.
Although Oreichthys crenuchoides require that they are kept in a group they will set up small territories for themselves and the fish will occasionally spar over border disputes. By keeping these fish in a larger than normal group any aggression is kept well spread and helps to prevent one fish from being over bullied.

Feeding

Small aquatic inverts make up the bulk of their natural diet so include lots of suitably sized live or frozen 'meaty' items in their diet. Oreichthys crenuchoides are relatively unfussy and will also accept flake food and micro pellets.

Compatibility

Oreichthys crenuchoides has to be kept in a large group of around tem plus individuals in order to feel secure and to see the species at its best. They are a quite a delicate species, robust or lively tank mates may intimidate it. Use small, quite and peaceful species which require the same conditions as tank mates.

Sexing

Only the males develop a large yellow dorsal fin as they mature. The females are more rounded and remain smaller than the males.

Breeding

Oreichthys crenuchoides is a trickle spawner which means that a few eggs are laid on most days. Healthy well cared for fish don't need any spawning triggers. Even with the small peaceful fish used as companions for Oreichthys crenuchoides it is most unlikely that the fry will survive in any numbers in a community tank. In order to raise a brood of these fish it will be necessary to use a separate spawning tank.

Use a bare tank with aged water and a mature air operated sponge filter and lots of broad leaved plants tied in to bunches and simply dropped in the tank.

The fish will use the plants for depositing their eggs with evening time being the peak spawning time. The eggs will hatch after approximately three days and the fry will be free swimming after a further five days. The fry are very small and require infusoria as a first food. Infusoria can be encouraged to grow by using a commercial liquid fry food in ver small amounts before the fry are free swimming. The liquid fry food will also supplement the fry's diet until they are big enough to take newly hatched brine shrimps and micro worms.

Wild status

The IUCN Red List of endangered species lists Oreichthys crenuchoides as 'data deficient'. Population trends are unknown. but possible threats include the fish being widely collected for the aquarium trade.

Additional information

Wild fish have been observed breeding where the large mature males took up small territories and fought to defend them. The males then try to attract a female to their territory for breeding.
Smaller males which lacked the large dorsal fin and appeared more like females would sneak in on the act to breed themselves but without having to find or defend a territory of their own.

Information at a glance

pH: 6 - 7.5
dGH: 2 - 8
Temperature: 22 - 24°C (72 - 76°F)
Lighting: Subdued
Diet: Omnivore
Size: 3cm (1.2in)
Min tank size: 100 litres
Difficulty level: Intermediate
Aquarium type: Community
Swimming level: All levels

Distribution and habitat

distribution map for Drape finned barb, Oreichthys crenuchoides

Origin: Brahmaputra river N E India

Habitat: River with clear water and a muddy substrate.

Classification

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Genus: Oreichthys
Species: O. crenuchoides, Schäfer, 2009

Other common names:
None

Synonyms:
None