I know there are many factors involved here, so I figured I'd do a test while I wait for the fresh, conditioned water in my tank to clear. I found a dropper bottle and put some ammonia in it for dispensing.Then I filled up a 5 gallon bucket of tap water(there's no ammonia in our tap water, I tested it) for testing. I began with 3 drops. Then to 6, 9, 12 all the way up to 27. I was not yet hitting 4ppm. I emptied the bucket, refilled and added 30 drops as it filled to ensure the ammonia mixed well. I let it sit a while and did another test and as best as I could tell, I was finally at 4ppm. Now, the 30 drops end up being ~2.5ml according to the API test tubes. I have a 30 gallon tank so this would mean I'd need a total of 180 drops to get the full aquarium up to 4ppm to begin cycling. This is nearly half a fluid ounce. This seems like too much based on my research. Unfortunately, the ammonia I am using doesn't offer any info regarding its mixture percentage. I really want to do this right the first time. Any thoughts?