They have eaten which is a load off my mind.
I received a detailed response from Pete Giwojna about the northern and southern varities but don't believe I would be able to post it. If you want to send me your email, I will send you the response; it's quite interesting.
I was told that they will have an abbrievated planktonic period but will easily eat the baby brine shrimp that I already hatch for my ponies.