Re: how to culture brine shrimp?
It would help if you do not create so many threads, they can be packed together in the same thread since they are related to culturing live foods.
I am not sure on culturing daphnia, however you can google Brine Shrimp hatchery if you want to have a reference set up for hatching brine shrimp. Brine Shrimp eggs can be easily purchased from any LFS, some are labeled as Sea Monkeys (cute little pets sold to me when I was a kid).
As for your other question on how to tell both of them apart and also to culture them, here's a link that could prove useful.
http://www.fishchannel.com/freshwate...ive-foods.aspx
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