http://www.njtroutintheclassroom.org/2006/10/31/what-is-the-white-foam-on-the-water-in-our-tank/ A conservation education initiative of NJ State Council of Trout Unlimited and its chapters, NJ Division of Fish & Wildlife, and leading educators Thu, 28 Aug 2008 19:20:54 +0000 http://wordpress.org/?v=2.0.5