Rick, I had a Janns Pipefish for about 4 years. He just passed away recently. I think from old age, as I don't lose any fish from my personal display tank. I never fed it anything special. It ate pods. But that's the Janns Pipefish. Others have different requirements as Dom mentioned.
Mine lived happily with 10 other larger reef fish. It wasn't in a species tank. But once again, that's because the Janns Pipefish is able to survive on pods. Mine did not eat any prepared or frozen food.
I think four years was an acceptable length of time to consider it a successful attempt at keeping pipefish in a reef tank. They are a really beautiful orange, purple, red, blue coloration too.
swimmer