Well, I haven't done this myself, but I keep a little book with the info i collect and this is what i have on fishless cycling--i am assuming you have a basic knowledge of water chemistry and testing kits, etc....if not, i got a link for that!
is used per day---results should support a fully stocked tank--don't wait until NH3
drops to 0 before adding more, you need a constant supply of food for the bacteria--
initially add 5 ppm NH3
don't add more until you have a significant drop in your levels ( to 2-3 ppm
), then start adding 2.5 ppm
each day (don't add it every day until it is being completely processed every day)
once it is processing 2.5 ppm
every day add that amount every day until both NH3
go to 0
you want to use pure ammonia , make sure that it doesn't contain any other added chemicals, pure ammonia is usually very cheap....
guideline to start is to use 5 drops per gallon--should put level at 5ppm
, if not keep adding until you reach it and check levels daily
you can also do a google search on fishless cycling and you will get a lot of info, hope this helps you
btw, your friend has an established tank i am assuming---put your filter on her tank and let it run for the month until you transfer the fish, keep all filter material wet with tank water until you can hook it up at your house...
also would suggest researching the particular fish's requirements, because they can vary widely......best luck, let us know if you need more help