June 11, 2014:
Nitrite: 0.1-0.3 (Lower side -- will wait 'til tomorrow to do a water change if it rises. Added 4 more drops of Prime to keep everything safe just in case)
So it looks like my cycle is finally coming to an end! I didn't test yesterday -- decided to test every other day from now on until everything is consistently at 0. I haven't had to do a water change due to high nitrites in over 3-4 days!!!
June 22, 2014:
I did like 2 water changes yesterday because I redid the tank and wasn't anticipating on doing it lol. Hopefully the water params will settle down by tomorrow. All old decor + sand + filter are still in.
My water parameters got funny at the very end, too. Looks like you are waiting on the nitrite converting bacteria (nitrospira?) to mature and get stable. Mine was the opposite. I was waiting on the nitrosomonas bacteria to get stable at converting ammonia to nitrite.
I would hazard a guess that it would be another week for you...my tank ALMOST finished and then had a minor crash and THEN re-established itself. You are doing great and adding Prime is complete peace of mind!! You are going to feel GREAT when it is done, I know I did!!