For some general guidance, you could use this calculator
to estimate the initial amount to add. Just be sure you adjust the measurement value and the percentage when calculating.
The amount you add each day as the bacterial count grows will vary from a drop to a couple mL. You'll just have to get a feel for your specific tank.
Originally Posted by Patrunkenphat7
I am wondering how much ammonia you add per day per every 10 gallons of water for the fishless cycle in a heavily planted aquarium. Also, are there any recommendations on what "brand" of ammonia to purchase to insure that there will not be any additional chemicals in the solution?
I have never done a fishless cycle before, so I want to make sure that it will not negatively affect the plants.