Not knowing myself but having found I like these little guys... I did a search and this is what I have found:
The Blood Characins are some of the easier Tetras to breed. Condition the pair well and use a small breeding tank (3 to 5 gallons) with a dark substrate and containing many fine leafed plants such as Myriophyllum, Cabomba and some Java moss, also include some floating material as well.. The water qualities should be soft and acidic, readings of: pH 6-7 and 4-8 dH should be fine keep the temperature in the middle seventies. The small transparent eggs will be strewn among the plants. Remove the parents after spawning. The fry hatch in 24-28 hours. Feed the young baby brine shrimp, Infusoria, egg yolk, and when larger, finely crushed flake food.
Here is the link in case you want to read the whole site. Maybe some of the Guru's around here will respond and give us even more information. Later, Pop's
Serpae tetra, with care, maintenance requirements and breeding information for your tropical fish