......
Yet in the very next section, the author starts to refute this statement with:
"At 62 degrees, the activity of the nitrosomonas bacteria begins to reduce significantly. The effect of this, of course, is a reduced ability for the filter system to manage the conversion of ammonia to nitrites,....."
and then:
"At 55 degrees, the nitrifying bacteria in our filters begin to die off as well, although they will not be completely gone until about 42 degrees F. The effect of this is that our filters begin to loose the ability to eliminate nitrites."
Both assertions can not be correct. But which one is the correct statement? How is the hobbyist reader to know? The author does not cite any sources for his information. If he did, even he might have seen the contradiction and performed the necessary editing before publishing this article.