what species of seahorses are you thinking of doing? i know ORA has shipped us some pretty high quality easy eating captive bred seahorses before so there are definitely some out there. One of our customers feeds hers 3 times a day PE mysis for her little bit larger ones and baby mysis for her smaller ones, even though they try to eat the PE mysis first lol. I have also see wild caught eat live ghost shrimp. Talk about unexpected and a nice show LOL