Hello everyone, I am new to Reefing and R2R. I am currently cycling a 20 gallon jbj cube. I chose to use realreef "live" rock and a sand bottom. I also chose to use the fitz turbo fuel ammonium chloride as a source of ammonia I tested and it was 2ppm. I used the fitz turbo start 900...in the first couple days ammonia dropped 0.50 ppm daily dropping almost to 0 ppm. The nitrite went to 5 ppm or greater and nitrates fluctuated from 0-40 ppm in the first few days. I was advised to spike ammonia again to 2 ppm, which I did, and the nitrites stayed 5 or greater ppm, and nitrate fluctuated from 20-80 ppm. The ammonia dropped rapidly over the course of 3 days to 0-0.25 ppm. I'm curious if the cycled has stalled and that is why the nitrites are remaining high...I hope that one of you experts can help me understand what is going on and provide guidance. Thank you for your time.