Denise, I bought them from Draco Marine ~ Jorge is a great guy and follows up to make sure all is going well. I waited for a long time hoping that DanU from Seahorse Source would have the erectus in stock but he too is awesome to deal with so his horses go fast (he is increasing his brood stock ~ so they'll be available again soon).
Bunsenburner, Thanks! Yes, the erectus fry are hardy although I am sure I will go through a few before I get the hang of it.