More info
Datasheet
| Minimum Tank Size | 40 litres / 10.57 US gallons |
| Maximum Size | 3.0cm / 1.18inches |
| Temperature | 23°C / 73.40°F - 27°C / 80.60°F |
| Hardness | 5.04dgH / 90ppm - 15.02dgH / 268ppm |
| pH | 6.0-7.5 |
General Description
The Daisy's Ricefish (Oryzias Woworae) is a species of fish that was introduced to the aquarium trade shortly after its scientific discovery. It is distinguishable by its truncate caudal fin and hour-glass shaped ossified mesethmoid. Phylogenetically, it belongs to the O. woworae species group within the genus Oryzias, displaying orange to deep red pigmentation on its fins and a bluish sheen on the body, more pronounced in adult males.
Aquarium Setup
This species is adaptable and does not require any specific decorations, but its coloration may be less vibrant in a sparsely-decorated tank. For an ideal display, mimic its natural habitat with a sandy substrate, water-worn tree roots and branches, and leaf litter. A planted aquarium is suitable and may improve fry survival rates alongside the adults (see table).
Behaviour
Daisy's Ricefish is generally very peaceful but may not be an ideal addition to many community tanks due to its small size. It does well with diminutive species like Microdevario and small Loricariids, or alongside freshwater shrimp of the Caridina and Neocaridina genera. It exhibits non-aggression towards conspecifics, except for minor sparring during courtship, and thrives in groups of 8 or more.
Feeding and Diet
The Daisy's Ricefish is an unfussy eater but benefits from a varied diet including crushed high-quality dried foods, live microworms, Artemia nauplii, and algae. Adults have been observed grazing on solid surfaces, indicating a potential natural diet with an algal component.
Reproduction & Dimorphism
Breeding this species is relatively easy, with females capable of producing batches of 10-20 eggs frequently. Males darken in color, defend territories, and entice females during spawning. Adult males are more colorful, have longer fins, and a slimmer body compared to females. The genital papilla in males is a short tube, while in females, it is bilobed.
Habitat and Distribution
The Daisy's Ricefish is known only from Mata air Fotuno stream in Parigi district, Muna, Southeast Sulawesi, Indonesia. It thrives in karstic freshwater streams with a mixed substrate of mud and sand, under forest cover, and schools with other species like Nomorhamphus. Sulawesi hosts a high diversity of Oryzias species, with 17 endemics identified to date.