I am starting a Nano 10g reef and am currently cycling the tank. I am using Dr.Tims fishless cycling guide. Today I tested PH (7.8), Ammonia (8ppm) and Nitrite (0.5ppm). Today is my 7th day cycling and I was previously reading a constant 7.8PH, 2ppm Ammonia and 0.25ppm Nitrite. Yesterday my aquascape fell apart so I needed to glue it back together. I thought I could quickly pull out the rock which had been in the tank since the cycle started and glue it back together. After that I was unsure if exposing the rock killed off some of the beneficial bacteria so I decided to add 1-2 tbsp. of the bottled BB. I don't know if this could have caused the spike in ammonia and nitrite but can I get some advice. Is the spike normal or should I do a water change? PLS help.