My nano has been cycling with live rock and sand-and some unwanted matis!-for 2 days. I checked my levles today because frankly, I wasn't sure when to do that. My pH was about 8.1; amonia 0; nitrite 0; nitrate inbetween 5-10. And yes, I did it right. My question is, are those normal results? When will the "spike" happen?