Hello Want2bsleepy. I kept those and all seahorses in a partitioned part of my reef. My tank is long and skinny, 6' long so I just partitioned about 8" on one end for the horses. The babies had their own tank.
I fed them with this device which I patented a long time ago, but no longer sell.
http://breedersregistry.org/journal...strategy-for-hippocampus-sp-and-other-fishes/
They were raised on brine shrimp and nothing else. I realize that that was probably not the best diet, but they never complained and grew nicely. That was also many years ago so today I would probably change their diet. I can still collect them but have not in a few years.