Oryzias woworae PARENTI HADIATY 2010.
Rod Orizias (Oryzias) – Rice Fish.
Orizias vovora is a small fish that aquarists have learned about only in 2010. She was discovered in Indonesia and was first described by a biologist Daisy Vovor, in honor of him a fish and got a part of its name. The second ‘Oryzias’ translates as rice – some members of the genus inhabit the rice fields.
Also called Orizias neon and Oriziasom muna.
Habitat: are described and known only in one locality, a stream called ‘Mata air Fotuno’ on the island of Muna, Southeast Sulawesi (Tengara province), Indonesia, but may have wider areas of distribution.
Locations of the genus Orizias (Rice Fish) and Orizias Vovora (Oryzias woworae) in particular.
Sulawesi is a special / specific center of diversity / diversity for this genus, with 17 endemic (belonging only to a specific locality) Oryzias species described to date.
The natural habitat of Orizias Vovor, creek ‘Mata air Fotuno’ on the island of Muna, Sulawesi, Indonesia.
It inhabits a freshwater karst stream, flowing in 80% of the forest cover with a mixed substrate of mud and sand, plus places with fallen leaves. PH ranges between 6.0 – 7.0.
Description: the trunk is elongated and flattened from the sides. The front of the back and the head are also flattened.
The small dorsal fin is shifted back, and the pectoral fin are high.
The body of Orizias is translucent and gray-lilac. For the ability to emit a kind of glow when the rays of reflected light hit, the fish is called Orizias neon. The underbelly and pectoral fins are colored reddish.
On the tail fin there is a red edging.
Adult males of Orizias Vovor .
Adult males are much brighter and more colorful, have longer fins with pointed rays and have a more slender body shape than those of females.
Orizias Vovora couple.
The males anal fins form a short tube – gonopodies, while in females they are bilobed.
Female Orizias Vovora.
The maximum size of Orizias vovora is 25 – 30 mm, which makes it the smallest species of Oryzias, known among Sulawesi, although not the smallest in the genus.
Arrangement and parameters of the aquarium: Rice fish feel more comfortable and more confident in a flock of 35 liters in an aquarium, with basic dimensions of 45 * 30 cm or more.
It adapts well, with no special requirements for the interior, although it tends to be less colored when it is contained in a poorly designed aquarium.
It looks best in an aquarium where an imitation of natural habitat is created, which may consist of a sandy substrate, the roots and branches of trees, plus a few handfuls of fallen leaves.
An aquarium with plants is also suitable and can provide the young fish with a better chance of survival along with adult fish.
Water parameters: 23-27 ° С, pH 6.0-7.5, hardness 5-15 °.
Installation of the filter, the aerator and weekly replacement of the fourth part of water is necessary.
Oryzias woworae very peaceful fish that get along well with species of similar size and temperament, but this does not make them an ideal addition to most communities due to its small size.
If you want to keep it together with other miniature species of fish, such as Micro debris, eight-strip glass barbus (Eirmotus octozona), Rasbor, small species of iris, dwarf Corydoras and small Loricariids such as Ototsinklyus – are the best options, at the same time freshwater shrimps from the genera Caridina and Neocaridina are also suitable for sharing.
If you intend to breed Orizias vovora, then ideally they should be kept alone and we do not recommend keeping it with other types of Oryzias due to the possibility of hybridization.
These are non-aggressive with respect to other fish, and sometimes harmless skirmishes occur between males during courtship. They look most impressive and behave more confidently in a group of 8 or more individuals of the same species.
Nutrition: Orion neon accepts all types of feed, but they must be the right size.
The combination of the crushed or fine fraction of dried feed, plus live or frozen from Artemia, Cyclops, tubers or similar, is ideal for adults Orizias, you should also add feed with the content of algae components.
It is fairly easy to breed and quite fertile, females are able to produce eggs in clusters in the form of a “bunch” of 10-20 pieces every few days or even daily if they are in good condition.
Spawning usually occurs early in the morning, males noticeably darken in color and begin to guard / protect small, temporary territories from each other, trying to seduce females.
The sticky eggs, usually in the form of a single mass, are fertilized at the same time, after which they continue to hang from the female for some time and ultimately disintegrate individually or in small clumps among the vegetation.
Small-leaved plants such as Cabomba, Ceratophyllum or Taxiphylum are ideal, but synthetic fibers or other artificial materials are also suitable as a spawning substrate.
The incubation period depends on the temperature, usually 1-3 weeks, while adults tend to ignore the eggs, they can eat just hatched larvae, although if the aquarium is densely planted, some tend to survive.
Alternatively, caviar or fry can be transferred / deposited in a separate nursery tank filled with water from the aquarium where the spawning took place. Free-floating fry are able to take micro-foods, nauplii artemia, etc.
It is recommended when jointly growing fry of different ages, if there is a sufficiently large discrepancy in size, periodically plant larger ones into another aquarium.
They become sexually mature upon reaching 4-6 months.
In aquarium conditions Orizias vovora (Oryzias woworae) can live up to 4 years.