Ok so i'll start from the beginning........ I started adding bottled ammonia to my tank on the 24th August, my nitrite spike happened around 2 weeks into the cycle and my ammonia was being processed in 12 hours 3 weeks into the cycle. Since then I have been patiently waiting for my nitrite to drop to 0ppm in 12 hours. It has been stuck around 15 hours for 2 weeks. I check my PH every week, it started at 8.2 and had dropped to 7.4. Not enough to stall the process? On Friday night I did a complete water change hoping this would kick start things again and have replaced all my plants that were looking tired and worn. Any one have any suggestions on what i can do next? Thanks