Family: Adrianichthyidae
A peaceful omnivore adrianichthyidae from Southeast Asia (Indonesia, Malaysia and Singapore) — beginner-friendly.
Oryzias javanicus of the family Adrianichthyidae is an aquarium-kept Adrianichthyidae. Peaceful and omnivore; quality prepared foods with variety, it grows to 3.1–4.5 cm and prefers 22–25 °C water. Other Oryzias species in our database include Oryzias curvinotus, Oryzias latipes, Oryzias sinensis.
Difficulty: easy. Peaceful. Keep 6+; larger groups settle better.
Aim for 22–25 °C. Standard heater to hold the mid-range steadily; 22–25 °C recorded range.
Adults reach 3.1–4.5 cm; it is upper; surface-oriented; keep 6+. Plan for at least 45 litres.
Omnivore; quality prepared foods with variety. It forages naturally over dark fine gravel or sand, so let some food reach the bottom.
Peaceful. Recommended tankmates: Amur False Gudgeon — Similar size and water needs, Striped Bitterling — Similar size and water needs, Acheilognathus gracilis — Similar size and water needs. Avoid Large aggressive cichlids — Bullying and injury risk, Known fin nippers — Constant stress and fin damage.
Its home waters are 东南亚（印度尼西亚、马来西亚、新加坡） — clear streams, rivers and still waters, with still to very gentle water.
Low escape risk, but a lid is cheap insurance.
In the aquarium: egg-scatterer over fine plants; condition with rich foods and simulate seasonal changes. Males are typically slimmer and more intensely colored; females fuller-bodied.