For 10 days I was well over 2.0ppm for nitrite, and ammonia dropping from 2.5ppm. After ten days my nitrite dropped to 0.007ppm and ammonia is 0.05pmm. Today my nitrite went back up to 0.078ppm and ammonia dropped to 0.04ppm. This has been cycling for 25 days with only one 30% water change 2 weeks ago. What should I do to get nitrite and ammonia down to zero?



