Section 8 studios has a free Virtual Sea Monkeys game. If you do all the steps necessary being careful not to overfeed and remembering to oxygenate you can raise healthy, happy Sea Monkeys from first hatching to mating to second generation. And it's easy to be patient when waiting 24 hours just means hitting the "Wait 24 hours" button.
Click here to check the simulation out for yourself.
Or click here to adopt a considerably less interactive Sea Monkey.