you could leave them for the parents to tend, but sometimes they will eat them either because they were not fertile, or inexperienced at parenting, you could take them out and put them in another tank, but you should use some of the aquarium water they are in now, then put an airstone under or next to to aeriate and keep anything from settleing on them, if they are fertile you should pick any dead, white eggs off t keep fungus off the good ones.then you have to think about what to feed them when they become free swimming