Now YOURs is a nice picture! I've often wondered about pipefish.
It is funny that quite a few "facts" about seahorses I haven't found true at all. Waterflow has been one of them. Often when I have the bubble bar (yeah, hokey, but I like is once in a while, plus it adds a flow that is difficult to get otherwise) my mustang will "ride" the bubbles. Funny sight.
And I noticed that bristleworm after I posted the pic. The fairy does great with the smaller worms, which is okay because they are a decent cleaning crew.
Do you have many corals? I'd love to hear what you keep with the pipefish.