Very helpful! Thanks so much. I’ve now read all you’ve written and linked. Apparently, I hadn’t found the "Club’s usual feeding tips" (do you have a link?), so it was great that you copied it for me in this thread.
I would have been a lot less worried if I had read the tips first. I had found the article about feeding stations, but it seems you need to interest the seahorses in food first, before you can train them in that way. And mine are just ignoring frozen mysis as far as I can tell. Good to hear that it is typical and expected, for the first couple weeks, that they might be shy and mostly interested in live ‘pods which they find on their own.
It was also helpful to read your suggestion of how to tell whether they’re eating enough or not. So far, my own seahorses seem ok, not particularly sunken in the abdomen. So, probably ok.
Anyway, you’ve put my mind at ease for the moment, and I’ll just be patient and see if they develop more interest over the next week or two.