George- Congratulations. There will be a debate about how long to wait. I have siphoned the fry out after ten days, and then, on the other hand I have hatched them artificially. I've removed them at any number of days in between those extremes. I have gotten belly-sliders when moving the fry before three days free-swimming, and 100% bellysliders when moving wriggglers, even though I was careful to match water conditions, even using water from the spawning tank in the rearing tank. If separating them early, I recommend moving the parents. As I've brought it up, anyone else have trouble with bellysliders? Any ideas about the cause in Apistos? Bob Dixon