I just about a month or month in and half ago got done battling a major crash inon of my tanks, and now once again its crashed I am so freaking frustrated. The first time it crashed because I was forced to reduce the flow rate when my main pump went out. This time I guess it must have been caused by my GFI tripping while I was on vacation for 3 days, the media stayed wet and the water didn't get colder then maybe 70, which is what the ambiant temp was.