I didnt see anything show up for a week and a half when I started my 10. Amonia should show up first then nitrite then nitrate. it took 6 weeks before my readings were at 0. The die off on the live rock should be enough to kick off the cycle. You can start it with shrimp or a pinch of flakes but I would wait a couple days and see what happens. If you go the shrimp route take it out after a couple days, you want to start the cycle not prolong it. Be patient, only thing that will happen fast in a nano is a crash.