A snail was the culprit. It took a lot of self restraint to not smash him when I got him out of the return line. Pretty much everything in the sump died. The tanks were alright because they have overflow boxes so they won't drain down. The snail must have crawled into the return line to the sump (from the sump side) and gotten stuck. That caused my frag tank to overflow because the water could not return to the sump. So eventually all the water was pumped out of the sump and on to my basement floor. The light over the sump then cooked everything that was exposed. I was ready to give up then but I have since regained my desire for the reef. Things will get better, it just cost me alot of money but I will make more. Thanks for the concern, Shawn.