I am six weeks into fishless cycling. Got the ammonia up to around 5ppm to start with, I had my nitrite spike around the second week and they have been at zero since about a week after that and have stayed that way. My nitrates are between 40-60. The tank seems to be able to burn through about 2 ppms of ammonia in a 24 hour period. It seems to be a constant cycle of burning through about 2ppm every day. Never been able to get down to 0
It has been 6 weeks this past Tuesday...what am I doing wrong? I am wondering if the PH is to low.. Will the tank not fishless cycle? I even went out and purchased a new ammonia test kit from aquarium pharmaceuticals thinking something was wrong with my kit, but no change.
Fluval 304 Filter
Undergravel filter with 1 power head
Ammonia is at 1ppm have not added any in almost 36 hours
Nitrate is around 40
Nitrite is 0
ph is around 6 or less
ph city tap water is around 7.2 7.8
Thanks in advance for you help.