Update:Either way I think. Give it a bit when you get trates dose again. See if what you have is established then just keep it constant til it wipes it out quickly.
I've only dosed the 2ppm ammonia once.
Friday: dosed 2ppm ammonia
Saturday: 0 ammonia 2ppm nitrite 0 nitrate
Monday (today): 0 ammonia, 0.25 nitrite, 10 or 20 ppm nitrate