I posted a few days ago about my spike, but I think I have to do something about it now. My Nitirites are at least 45 ppm, and its been that way for two weeks. My ammonia phase took two weeks, and I should be seeing some kind of decline in Nitrites. I think I need to do something. There are two fish in the tank, and they seem happy but there is no way with that kind of reading. Should I do a water change? Bio-spira?