I've fishless cycled for 7 days, Im stuck as what to do because ammonia has been at 4ppm from day one adding pure ammonia to get it to that and not added anymore since. I did add safe start on first day as well, this morning I tested with api master and still no drop in ammonia 0 nitrites 20ppm nitrates. So went ahead done a 25% PWC and tested few hours later and all was same except nitrates which dropped to 5ppm. So should I just do 90% PWC and start over or just do a fish in cycle with another bottle of. TSS? Or should I just wait for the ammonia I have now to drop? I don't want to get to far ahead and have to start over!