Gunny, I hate to be the bearer of bad news but the nitrite spike is the longest part of cycling and could easily take twice as long as the ammonia phase. Keep adding ammonia very time the ammonia level drops to zero to bring it back up to around 1.0. After I added my plants, my ammonia cycled in less than 48 hours. The nitrite immediately went off the chart and has been there for 7 days now. I can add ammonia bringing it back up to 1.0 and it is back to zero in less than 8 hours. The nitrite spike lasts forever though.