|Synonyms||Characodon multiradiatus, Girardinichthys limnurgus, Lermichthys multiradiatus|
|Sexual Dimorphism||Mature males display dark-edged yellowish areas on enlarged unpaired fins. Males also possess an andropodium.|
|Maximum Size||5cm (2.2")|
|Water Parameters||Hard, alkaline water is best long term. pH: 7.5-8.5, dH: 15-30 degrees.|
|Temperature||Sub-tropical: 18-22 deg C (64-72 deg F)|
|Compatibility||Species-only aquarium; Sub-tropical community with no long-finned fish|
|Lighting||No special requirements|
These fish will reproduce in any well-kept aquarium, and this is usually initiated by the males, who will flash their showy finnage in front of the females. The male fish fertilises the female by the use of his andropodium, and after 55 days, the females can be expected to release 10-20 (occasionally as many as 30) live young. The adults are not usually a threat to the young, which may be as large as 8mm SL when born; however, do observe them carefully. A heavily planted aquarium will usually provide enough hiding places and negate the need for separation of adults and young. Not surprisingly, the total number and size of fry will depend on the size of the adult female, and she will appear quite hollow bellied after giving birth.