Dissolution -
I also enjoy keeping pipefish. I have a freshwater species that seems to enjoy eating dry flake food as well as live foods.
I think my favorite saltwater pipe is the Dragon-faced Pipefish. I still have two of them for sale where I work in Oregon City (Animal House).
They do occasionally breed in captivity, but the larvae are very tiny, and difficult to raise. Brine shimp naupuli were too large for them to feed on.
Is anyone in the Portland area keep a rotifer culture going? Mine crashed awhile back.