Thanks it's been a fun experiment. I'm only getting fair results with using it to grow crypts. My basement is most likey too cold this year do the record winter we are having. The sump tank temp is 66-68degrees.
I intend to run the system until spring 2014 then move on to other projects.
I hear ya I've actually had to pop the heat vents open in fear of heaters in my tanks not being able to keep up in my basement:/