Snakeskinner: I hope you have turned your filter back on, otherwise the buildup of toxic waste in your tank will kill the fry in short order.
If you are worried about fry getting sucked into the filter, cover the intake with a filter sponge. Better yet, for the benefit of this and future broods, also add an air-driven sponge filter to the tank. Not only does it help keep the water cleaner, but the fry will graze on it.