Theoretically I think it would be impossible to raise all of any axolotls eggs...even if one was very well equipped. Their mortality rate is very high, which is why they lay so many eggs. Most species with high mortality rates do produce high numbers of young. Even though their mortality rate has increased...due to being raised & bred in captivity, their cannabalistic tendancies & other problems still contribute to high mortality rates. The Indiannia University has been raising & researching, etc. - axolotls over the years & have raised numerous batches...
but then they are much better equipped to do so than we are as home hobbiests.
I had to put a limit on the number of larvae we could raise. That limit was about 50. We have 56.
I don't expect all of them to survive.
We are keeping 2, & friends, aquaintances, aquarium & pet stores are willing to have the rest of the larvae.