adam_keene
Aquarium Advice Regular
how long after the ammonia levels go down should the nitrite levels take to lower???
Very true. In general terms, ammonia will take 7-10 days to subside once first detected and nitrite can take anywhere from 2-6 weeks. It really depends on how the tank is set up, baterial surface areas available and if any "seeding" materials where added.midiman said:no one can tell you with 100% accuracy