Oreichthys: Latin, aurum = gold + Greek, ichthys = fish
Set up their aquarium with sandy substrate and include bog wood, leaves, plants including floating plants if possible for decor.
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.
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.
Only the males develop a large yellow dorsal fin as they mature. The females are more rounded and remain smaller than the males.
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.
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.
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.
pH: 6 - 7.5
dGH: 2 - 8
Temperature: 22 - 24°C (72 - 76°F)
Size: 3cm (1.2in)
Min tank size: 100 litres
Difficulty level: Intermediate
Aquarium type: Community
Swimming level: All levels
Origin: Brahmaputra river N E India
Habitat: River with clear water and a muddy substrate.
Species: O. crenuchoides, Schäfer, 2009
Other common names: