Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Some plants are more tolerant than others.
To grow a good bacteria colony, yet keep the ammonia lower do this:
Add enough ammonia to test 1.0 ppm.
Keep on testing and adding ammonia twice a day as needed to bring it back to 1 ppm.
This will grow almost as much bacteria as bringing it back to 3 ppm once a day, and is much easier on the plants.