Quick Cycle from Established tank

[likwid]

Hey guys,

I am looking at setting up a 5g nano at my office. I have a 10g tank at home that has been up and running for a year and a half, and I was wondering if I can do anything to speed up the cycling process for the 5g tank? I heard using established sand can speed it up, a filter/sponge from an established tank, I also have some chaeto that I could throw in there. Which would work best in speeding up the cycle?

Thanks