Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
So you are doing a planted fishless cycle.
Your tests are still showing some ammonia 24 hours after you have added some.
This tank is not cycled.
Keep on adding the ammonia to keep on feeding the bacteria. You could add enough ammonia to test 3 ppm, but that may burn some of the plants. If you want to use less, try adding only enough to test 1 ppm, but do this twice a day.
Continue testing ammonia and nitrite. Do not worry about nitrates yet.
When the bacteria and plants can remove all the ammonia by the next day, and the nitrites also read zero, then the tank is cycled. At that point the nitrates might be pretty high, or maybe the plants will be removing them. Either way, I would do a big water change before adding fish.