My main question is if i am dosing 4 drops of ammonia daily... after how many hours should I test it and confirm its at 0 ?
I've always waited for 24 hours on my tanks. For example, I'm cycling a 20-gal right now, and when I wake up in the morning I test to see where the ammonia and nitrite is at. Then I dose ammonia. Then I wait and re-check the next morning. If it's been 24 hours and everything is 0, then I dose one more time, wait 12 hours, and check again. If it's still 0 in 12 hours, then the cycle is done. If there's still lingering ammonia or nitrites, I keep dosing until those two are 0.