Thanks for all the feedback. I do have a waterfall and fountain that run
constantly, so I think there is plenty of water being moved. I am honestly
an unscientific ponder, in that I don't check water quality and all that...I
don't even own the tools to do so. Maybe now a therm. would be a good
investment though. And I'll try to find a way to shade the area more.
Thanks again

Craig