Any way to tell when babies are going to hatch?

Hey all!

Well, my eggs are developing nicely, only 2 didn't do anything. They are 14 days old now, and I can see everything on them now, plus they are moving a bit in their casings.

I have everything ready to go, and am going to do a practice hatching of my bbs, to make sure I don't have any issues.

But what I'm wondering is if there's a way to tell WHEN they are going to hatch, or is it a guesstimate using water temp as a guide?

Thanks as always for the help!

It's more when they're ready...My New Year's Babies hatched over a period of a week, which means the first few are double the size of the last ones out, whilst the ten who were laid the day the last few hatched took just over two weeks and were all out in three days

Soon! Once they start bouncing around, they can hatch at almost any time. For your BBS, I recommend having at least two batches of them brewing at a time. A couple days apart. They can die quickly and without notice. I've also been told that they should really be hatched everyday; reason being that they lose the majority of their nutritional value within 24 hours. This is true, but I've spread my batches of BBS a couple days apart and always been fine. They are hatching at different times 24-36 hours out anyways. Emergency food can always be any of the frozen foods: BBS, Mini Bloodworm, Daphnia, and Cyclops. I've had luck with the majority of these foods even with the newest of newborns. But only as a last resort. BBS have been my primary staple food for the first week or two before moving to the next. Their tummys will swell up pink/orange as they are filled with BBS. I have some that were born a few days ago : )