Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
It is getting close, but keep adding ammonia to keep feeding the bacteria.
When it is getting close the bacteria will be able to remove 3ppm ammonia in 24 hours, but you may see lingering NO2.
When it is done the bacteria will be able to remove 3ppm ammonia, and little or no NO2 will show in that 24 hours, then both ammonia and nitrite will read zero after that 24 hours.