This is one of the weirdest thing I've seen. It's happened before but this is the first time I've took a pic of it. These are standard plastic ice trays filled with tap water. I fill em up, stick em in the freezer, and when I open it up the next day I have these growths. The "eruption" is about an inch tall and sometimes I get 2 or 3 in one tray. I'm 46 years old and until a year ago had never seen this phenomenon. What is happening ? How ? Why ?