Hey guys, I have been fishless cycling my 55gallon for over a month now. I run an emperor biowheel filter. I recieved one or the four filter pads off another cycled tank as well as a biowheel off a cycled tank. I have been able to dose ammonia to 4ppm+ and have it go to 0 after a short while, sometimes even under 12 hours. To me this seemed really good, and I figured my cycle was well on it's way. I saw nitrItes for a couple weeks now and over the last weekend my nitrItes started coming up as 0. After getting dosing ammonia and it going to 0 and getting 0 nitrItes for about 4 days straight I decided my tank was cycled, and ordered my fish. My fish are coming tomorrow and so I decided to do a large water change, around 90%, to bring my nitrAtes down and get my tank ready for my fish. I did the water change about 6 hours ago and now I'm getting high nitrItes again, what the heck?!?! I thought my tank was cycled, do I need to wait longer till I test for nitrItes? Did the large water change mess with my readings in some way? I have about 200 dollars worth of fish coming and I don't want to dump them into a tank with super high nitrItes and lose all of them...I don't know what to do! What are my options if my nitrItes don't go down by the morning? I have a 20 gallon tank that isn't cycled, could I just put them in there and do very large water changes multiple times a day until my big tank shows 0 nitrItes? I'm kinda freakin out here