Ok, came home the other day and found that everything in the tank was dead. Touched the tank and it was hot! 99.5º So it looks like the heater malfunctioned, when I pulled it out I almost burned my finger, ran some tap water on the element and it sizzled. So my question is did this kill off the bio also? I am running a back of the tank Ref. live rock, Magicmud and Macro alge. Have had no problems with this setup. any feed back would help.