Well, I'm PO'ed. My 30 gallon tank had been up for months and the cloudiness would not go away for anything. I think when I fist got it I was a little cocky and overstocked it, so the initial waste in there was insane. The ammonia went to 0, so that was good, but the cloudiness never went away. I found a place out here that sells both nitrate and nitrite kits. I was going to pick up a nitrite one so I could see what was going on, but I accidentally grabbed a nitrate kit instead and wasted $15 and a trip 40 miles away. So I tested my nitrate and it was WAYYYYY too high. I'd done weekly water changed up until I was told not to anymore so that the cloudiness would go away. Still didn't go away and I wanted to get rid of the nitrate, so I washed the tank, gravel, etc. Only thing I kept unwashed was the carbon in my undergravel filter and the bio-wheel on the Penguin filter on it. Hopefully the tank will completely cycle now since I started with cultured carbon and a cultured bio-wheel. The fish do seem a lot happier now than ever before though.