If you get up during the night that they hatch out, they look like just hatched brine shrimp. You can see them best with a flashlight. With the other fish, filters, pumps, etc, you may not have any in the morning. They shed about every 3 -5 weeks, and the day they shed or molt, they get bred by any other shrimp of the same species. They cant breed any time but then. Then they develop eggs, and small shrimp. When they hatch, the mother swishes them off, and they become freeswimming. Lysmata shrimp are hermaphrodites, and all carry eggs. So the more you have, the more young you will have.