Brine shrimp alone is a very nurtient dead food for seahorses. Alive or dead. If you get them captive bred, then they will eat frozen mysis. I must disagree, I think that live rock is very beneficial in a seahorse tank, providing plenty of amphipods for them to graze on. Just juice any aptaisias that you can find. Make SURE thatyou keep the tank temp at around 70*F. I kept my seahorses (H. capensis) at 67*F and the male got vibrio, and died while he was pregnant. This species was a cold water species, but almost all seahorses will benefit greatly by lowered temperatures because it slows down and can kill bacteria like vibrio and infections.
RCaquatics,
I'm curious as to where to obtained your bargibantis, as there have been no known keepers of them, let alone breeders. Have any pics? I'ma bit skeptical as to species. They were more than likely dwarfs. A pic would help, but bargibantis rarely reach an inch in length, and are very simbiotic of certain gorgonians. They live in the West Pacific, Coral Sea, Australia, Southern Japan, Indonesia and Bali. You more than likely had the DWARF but not PYGMY H. zosterae.