cause you can!!they fall into the amphibian part quite well?you should be able to tell quite quickly if the eggs are duds,fungus etc will take hold pretty quick,good ones you can see the changing shape of the embryo fairly easily,from round to like a little half moon?good luck with them ,they take a lot of live food but if you can keep the food up to them they grow fast,need heaps of tanks with less babies in each.Whiteworms worked well for me till I run out,then it was chaos.