I killed a lot of sea hoses, back in the dark ages before the www… I found the hardest part of keeping them, was feeding them they only eat small easy to catch live food… I had a brackish 55 gallon tank dedicated to breeding mollys… and they would only eat molly babies that were 1-2 days old, and by breeding them in brackish, they would live in the sea horse tank for a few hours only, before they went into salt shock… the sea horses ate them well, but aren’t the most aggressive eaters, or the fastest swimmers, and I’d often have to collect a few dead molly babies out, as they would only eat them while they were live… of course trying to keep them in the dark ages, I was really on my own, trying to keep them… I’m sure there is much more info on them now… I just finally quit, because of how many died in my hands, but I love sea horses…