I just started cycling my tank. never really saw a major spike in the ammonia. I was using shrimp to feed the bacteria. the ammonia level has dropped down to 0 but I have seen a increase in Nitrate and Nitrates. just never thought it would get as high as my test results. but not taking much stock in to what they actually are since i'm using API. I bought 2 the master kit and then the strips. It took me several weeks to decide upon what tank and where to go. I went to a LFS privately owned. they hit me with an outragious number just for a 60 gallon tank. A marineland 60 gallon. with the stand 800.00. so I went to petsmart and bought the exact same tank and stand combo for 250. I decided at that point that maybe that local aquarium shop was just not a place to buy from. but the rest of my specs as follow. 60gallon tank 2 200 w heaters hob filter oxygen pump powerhead and just bought a circulation pump 950 aqueon 40 lbs dry rock 10 lbs live rock 40 lbs of live sand ph 8.0 Ammonia - 0 NO2 - 10 NO3-160 those are my levels so far. i'm planning on hitting my LFS this saturday to have them dbl. check my NO2 and NO3. since i'm using API tests. it might not be right. but if it is then not sure what to do to get it those levels down other than a 50% water change. this is an older picture. but I just added the circulation pump today.