I had trouble bringing it up to 5ppm. Im right now at around 4 I think. everytime i added a few drops, and checked, it wasn't changing the ammonia level, plus I was going through testing solution quickly.
elsewhere on another forum on the internet there is two methods: one is a add ammonia daily method, and the other is you add it once, bring it to 5ppm and wait. When levels fall, then you re-add the ammonia. well anyway, Ill keep monitoring and checking levels every other day.
thanks.