Al of my tanks have at least 1 HOB filer, regardless how much primary filtration they have. In each of these HOBs I keep a bag of ceramic bio media, for the primary purpose of instant cycling new tanks. Recently I started a new tank which I felt was started too soon after the last one I started, so I was not comfortable that I had enough seeded bio media in my secondary HOBs.
To get the new tank started, I swapped Bio wheels with one tank, took the filter pad from a second, and used a whisper filter which I had filled with carbon from a third. All of the tanks I took media from have plenty of additional bio media so they will see no change in water quality.
I'm not convinced biospira or cycle really work, and I couldnt imagine waiting a month for a tank to cycle. The LFSs should sell their used media or give it to customers of tanks.