what are you using to add the ammonia?
It may take some messing around with a 5 gallon bucket and a test kit, but after a few trials/tests, you should get an idea of how the ammonia affects the water.
After that, it should be a fairly straightfoward calculation.
I haven't used the Ace hardware store brand, but I think from what I've heard, it's fairly concentrated.
I found some pretty weak no-name stuff at some random store, so for me, I use about 3mls for each ppm I want in my tank. (I forget the actual mls/gallon ratio I had, it's written down somewhere at home...)
So, if I wanted 3ppm, I'd add about 9 mls.
Last edited by lochaber; 02-25-2014 at 09:01 PM.
Reason: math error : /