Thanks for all the info guys, it hit me today, about 3 weeks ago or so maybe a little more. The city was here and hooked my house to the neighbors with the hose bib. There water is froze, so since then I apparently have free water. Within a day or so I did a larger water change than normal on all my tanks. And seemingly after that is when the problem began. Im thinking that since the water is continuisly flowing in there house that the levels of acceptable chemicals is greater than it used to be. I don't know really for sure, but it seems to make sense a little. We will see. Thanks again,
SKI,