Recently my pair of Dempsys had babies. Unfortuanately after being moved to a seperate tank, within less than a week, all of them had died. I had an airstone as the only air movement as I didn't want to get any sucked up into my filters. Moved the fry away from the parents about 3 or 4 days after they became free swimming. Wonder if this was their downfall. Thought I had done things pretty closely to when my convicts had babies, and a number of them lived, but wondered if anyone might add some insight to this. Was sad not to have any of the fry survive.