How Long Do Zebra Danios Carry Their Eggs. Where do zebra danios lay eggs? The length of time just depends on when they’re ready to scatter as well as if there’s a viable male present to fertilize them.

Depending on what method you use, you should be able to see the actual eggs so you know they’re done. When we say “pregnant,” we mean “with eggs and ready to spawn.” how do danios sleep? How long do zebra danios lay their eggs?