Sea-Monkey help I am a new owner?

OKAY!! That's good! I always recommend researching about animals before choosing your next pet. :) Mine where pretty acrobatic, I of course couldn't tell who was a dude and who was a dudette, and I definitely didn't dream of naming all of them because there really isn't a way to tell them apart! :D Well, If you go to certain pet stores you can usually find things for your sea monkeys,. :( Mine didn't have babies that I know of.. I think their tank water diminished before I got to see.