MegF.
That's for sale???
I always feed my new babies in the deli cups I'm keeping them in but babies are kept on paper towel. The stress of putting them in a different container to feed will often sabotage your efforts...they feel most confident in their own homes. Once they are well established and eating every time, then you can think about substrate and moving them. Since cleaning daily is pretty much a given with babies (they spill their water etc all the time) they won't get a feeding response as many people will claim. Congrats on your clutch!