That's too bad. You did what you could, remember though they aren't all supposed to make it. Some are destined to pass on. In the wild a clutch of 20 may hatch. Some will perish to other animals and what not but some will just be weaker in general. It's natures way. But when it comes to CB animals, anything that eats is sold and you never know who may just not make it.
Good luck with your future rescues.