Can someone explain this to me?

I'm so tempted to buy this...........the other sea monkey kit has something called "instant eggs"......
Can I watch it swim? What do they look like? It sounds to me like they are going to look like little specks of stuff........they are attracted to light apparently.........do they look like anything???

http://www.discoverthis.com/sea-monkey-locket.html

I think they are gross.........can't I get the same thing by leaving some water in a glass for days and days............they need a less cute name............

http://andy.w2s.co.uk/sea_monkey/Resize%20of%20P1010018.JPG