Hey man, congrats on the babies! First how big are they, because that's important.

At any rate the only way to get them out is to net them. I'd recommend you use a soft net with a very fine mesh. In fact I'd say have a look at the nets that Specimen Carp fisherman use to get an idea of the mesh.

Make sure you have the temp tanks ready and be very gentle with them. Make sure not to touch them with dry hands!

I hope this helps!