Hello All,

I have built a beautiful grow room in my basement here in NH gallon tank, but I can't seem to get it cycled. I just did a 50% water change after reading about ammonia being to high when cycling without fish. It's been three weeks and I have yet to see a single measurable nitrite reading! The room is pretty air tight so I am thinking it may be lack of air flow but every time I open the door to the room it lowers the tank temp. Am I doing something wrong?

My readings are as follows:
PH: 7 - 7.5
Ammonia: Now at 4ppm it looks like
Temp: 77 to 80 F

Thank in advance for ANY advice you guys can offer!

Josh