Is this your first salt tank? I was in the same boat a few months back when I got started. Honestly let it g, don't do the water change til it all converts. You want hurt your rock since it wasn't lr to start. I actually used raw cooking shrimp to spike my no3/no4 cycle, I cycled very quick that way and it still took like 3 weeks. You have nothing to fear with the high ammonia without living creatures in the tank. If you wanted could possibly start your pods, I know they can survive cycling not sure to what extent though. I put mine in week one and have the little buggers every where, never used more than a bag of pods. Good luck and be patient it'll be so worth it.