Brine Shrimps (sea monkeys)

Recently I have started a Brine Shrimp (sea monkey) aquarium. They look like they are going to be easy to look after but only two days after I got them half of them were ... dead... I changed the water and put more salt in the water this time because I think that is what the problem was. But because of this I have done some research and I have decided to make a page on how to look after your sea monkeys. I hope it helps :)